Boost-Commit :

Date view	Thread view	Subject view	Author view

Subject: [Boost-commit] svn:boost r77746 - in sandbox/big_number/libs/multiprecision: doc doc/html doc/html/boost_multiprecision doc/html/boost_multiprecision/indexes doc/html/boost_multiprecision/tut doc/html/boost_multiprecision/tut/floats example
From: john_at_[hidden]
Date: 2012-04-03 14:20:36

Next message: lorcaminiti_at_[hidden]: "[Boost-commit] svn:boost r77747 - in trunk/libs/local_function: example test"
Previous message: antoshkka_at_[hidden]: "[Boost-commit] svn:boost r77745 - trunk/libs/conversion"

Author: johnmaddock
Date: 2012-04-03 14:20:35 EDT (Tue, 03 Apr 2012)
New Revision: 77746
URL: http://svn.boost.org/trac/boost/changeset/77746

Log:
Add extended floating point example.
Added:
   sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/floats/jel.html (contents, props changed)
   sandbox/big_number/libs/multiprecision/example/floating_point_examples.cpp (contents, props changed)
Text files modified:
   sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s01.html | 8 +++---
   sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s02.html | 15 ++++++++---
   sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s03.html | 16 ++++++------
   sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s04.html | 49 ++++++++++++++++++++++++---------------
   sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut.html | 2 +
   sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/floats.html | 2 +
   sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/floats/cpp_dec_float.html | 6 ++--
   sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/rational.html | 6 ++--
   sandbox/big_number/libs/multiprecision/doc/html/index.html | 4 ++
   sandbox/big_number/libs/multiprecision/doc/multiprecision.qbk | 8 ++++++
   10 files changed, 74 insertions(+), 42 deletions(-)

Modified: sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s01.html
==============================================================================
--- sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s01.html (original)
+++ sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s01.html 2012-04-03 14:20:35 EDT (Tue, 03 Apr 2012)
@@ -13,10 +13,10 @@
<div class="spirit-nav">
<a accesskey="p" href="../indexes.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../indexes.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="s02.html"><img src="../../images/next.png" alt="Next"></a>
</div>
-<div class="section id1061009">
+<div class="section id1095875">
<div class="titlepage"><div><div><h3 class="title">
-<a name="id1061009"></a>Function Index</h3></div></div></div>
-<a class="link" href="s01.html#idx_id_0">A</a> <a class="link" href="s01.html#idx_id_1">B</a> <a class="link" href="s01.html#idx_id_2">C</a> <a class="link" href="s01.html#idx_id_3">D</a> <a class="link" href="s01.html#idx_id_4">E</a> <a class="link" href="s01.html#idx_id_5">F</a> <a class="link" href="s01.html#idx_id_7">I</a> <a class="link" href="s01.html#idx_id_8">L</a> <a class="link" href="s01.html#idx_id_9">M</a> <a class="link" href="s01.html#idx_id_11">P</a> <a class="link" href="s01.html#idx_id_12">R</a> <a class="link" href="s01.html#idx_id_13">S</a> <a class="link" href="s01.html#idx_id_14">T</a> <a class="link" href="s01.html#idx_id_15">Z</a>
+<a name="id1095875"></a>Function Index</h3></div></div></div>
+<a class="link" href="s01.html#idx_id_0">A</a> <a class="link" href="s01.html#idx_id_1">B</a> <a class="link" href="s01.html#idx_id_2">C</a> <a class="link" href="s01.html#idx_id_3">D</a> <a class="link" href="s01.html#idx_id_4">E</a> <a class="link" href="s01.html#idx_id_5">F</a> <a class="link" href="s01.html#idx_id_7">I</a> <a class="link" href="s01.html#idx_id_8">L</a> <a class="link" href="s01.html#idx_id_9">M</a> <a class="link" href="s01.html#idx_id_11">P</a> <a class="link" href="s01.html#idx_id_12">R</a> <a class="link" href="s01.html#idx_id_13">S</a> <a class="link" href="s01.html#idx_id_14">T</a> <a class="link" href="s01.html#idx_id_16">Z</a>
<div class="variablelist"><dl>
<dt>
<a name="idx_id_0"></a>A
@@ -207,7 +207,7 @@
<div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none"><a class="link" href="../ref/mp_number.html" title="mp_number">mp_number</a></li></ul></div>
</li></ul></div></dd>
<dt>
-<a name="idx_id_15"></a>Z
+<a name="idx_id_16"></a>Z
</dt>
<dd><div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none">
zero

Modified: sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s02.html
==============================================================================
--- sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s02.html (original)
+++ sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s02.html 2012-04-03 14:20:35 EDT (Tue, 03 Apr 2012)
@@ -13,13 +13,13 @@
<div class="spirit-nav">
<a accesskey="p" href="s01.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../indexes.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="s03.html"><img src="../../images/next.png" alt="Next"></a>
</div>
-<div class="section id1062098">
+<div class="section id1097052">
<div class="titlepage"><div><div><h3 class="title">
-<a name="id1062098"></a>Class Index</h3></div></div></div>
-<a class="link" href="s02.html#idx_id_25">M</a>
+<a name="id1097052"></a>Class Index</h3></div></div></div>
+<a class="link" href="s02.html#idx_id_26">M</a> <a class="link" href="s02.html#idx_id_31">T</a>
<div class="variablelist"><dl>
<dt>
-<a name="idx_id_25"></a>M
+<a name="idx_id_26"></a>M
</dt>
<dd><div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none">
mp_number
@@ -28,6 +28,13 @@
<li class="listitem" style="list-style-type: none"><a class="link" href="../ref/mp_number.html" title="mp_number">mp_number</a></li>
</ul></div>
</li></ul></div></dd>
+<dt>
+<a name="idx_id_31"></a>T
+</dt>
+<dd><div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none">
+type
+<div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none"><a class="link" href="../tut/floats/jel.html" title="Worked Example: defining a mathematical function.">Worked Example: defining a mathematical function.</a></li></ul></div>
+</li></ul></div></dd>
</dl></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>

Modified: sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s03.html
==============================================================================
--- sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s03.html (original)
+++ sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s03.html 2012-04-03 14:20:35 EDT (Tue, 03 Apr 2012)
@@ -13,13 +13,13 @@
<div class="spirit-nav">
<a accesskey="p" href="s02.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../indexes.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="s04.html"><img src="../../images/next.png" alt="Next"></a>
</div>
-<div class="section id1062150">
+<div class="section id1097139">
<div class="titlepage"><div><div><h3 class="title">
-<a name="id1062150"></a>Typedef Index</h3></div></div></div>
-<a class="link" href="s03.html#idx_id_34">C</a> <a class="link" href="s03.html#idx_id_39">I</a> <a class="link" href="s03.html#idx_id_40">L</a> <a class="link" href="s03.html#idx_id_41">M</a> <a class="link" href="s03.html#idx_id_46">T</a>
+<a name="id1097139"></a>Typedef Index</h3></div></div></div>
+<a class="link" href="s03.html#idx_id_36">C</a> <a class="link" href="s03.html#idx_id_41">I</a> <a class="link" href="s03.html#idx_id_42">L</a> <a class="link" href="s03.html#idx_id_43">M</a> <a class="link" href="s03.html#idx_id_48">T</a>
<div class="variablelist"><dl>
<dt>
-<a name="idx_id_34"></a>C
+<a name="idx_id_36"></a>C
</dt>
<dd><div class="index"><ul class="index" type="none" compact>
<li class="listitem" style="list-style-type: none">
@@ -47,21 +47,21 @@
</li>
</ul></div></dd>
<dt>
-<a name="idx_id_39"></a>I
+<a name="idx_id_41"></a>I
</dt>
<dd><div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none">
int_type
<div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none"><a class="link" href="../tut/primetest.html" title="Primality Testing">Primality Testing</a></li></ul></div>
</li></ul></div></dd>
<dt>
-<a name="idx_id_40"></a>L
+<a name="idx_id_42"></a>L
</dt>
<dd><div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none">
limb_type
<div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none"><a class="link" href="../tut/ints/cpp_int.html" title="cpp_int">cpp_int</a></li></ul></div>
</li></ul></div></dd>
<dt>
-<a name="idx_id_41"></a>M
+<a name="idx_id_43"></a>M
</dt>
<dd><div class="index"><ul class="index" type="none" compact>
<li class="listitem" style="list-style-type: none">
@@ -161,7 +161,7 @@
</li>
</ul></div></dd>
<dt>
-<a name="idx_id_46"></a>T
+<a name="idx_id_48"></a>T
</dt>
<dd><div class="index"><ul class="index" type="none" compact>
<li class="listitem" style="list-style-type: none"><a class="link" href="../tut/rational/tommath_rational.html" title="tommath_rational">tommath_rational</a></li>

Modified: sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s04.html
==============================================================================
--- sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s04.html (original)
+++ sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/indexes/s04.html 2012-04-03 14:20:35 EDT (Tue, 03 Apr 2012)
@@ -12,20 +12,20 @@
<div class="spirit-nav">
<a accesskey="p" href="s03.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../indexes.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a>
</div>
-<div class="section id1062841">
+<div class="section id1097830">
<div class="titlepage"><div><div><h3 class="title">
-<a name="id1062841"></a>Index</h3></div></div></div>
-<a class="link" href="s04.html#idx_id_48">A</a> <a class="link" href="s04.html#idx_id_49">B</a> <a class="link" href="s04.html#idx_id_50">C</a> <a class="link" href="s04.html#idx_id_51">D</a> <a class="link" href="s04.html#idx_id_52">E</a> <a class="link" href="s04.html#idx_id_53">F</a> <a class="link" href="s04.html#idx_id_54">G</a> <a class="link" href="s04.html#idx_id_55">I</a> <a class="link" href="s04.html#idx_id_56">L</a> <a class="link" href="s04.html#idx_id_57">M</a> <a class="link" href="s04.html#idx_id_58">O</a> <a class="link" href="s04.html#idx_id_59">P</a> <a class="link" href="s04.html#idx_id_60">R</a> <a class="link" href="s04.html#idx_id_61">S</a> <a class="link" href="s04.html#idx_id_62">T</a> <a class="link" href="s04.html#idx_id_63">Z</a>
+<a name="id1097830"></a>Index</h3></div></div></div>
+<a class="link" href="s04.html#idx_id_51">A</a> <a class="link" href="s04.html#idx_id_52">B</a> <a class="link" href="s04.html#idx_id_53">C</a> <a class="link" href="s04.html#idx_id_54">D</a> <a class="link" href="s04.html#idx_id_55">E</a> <a class="link" href="s04.html#idx_id_56">F</a> <a class="link" href="s04.html#idx_id_57">G</a> <a class="link" href="s04.html#idx_id_58">I</a> <a class="link" href="s04.html#idx_id_59">L</a> <a class="link" href="s04.html#idx_id_60">M</a> <a class="link" href="s04.html#idx_id_61">O</a> <a class="link" href="s04.html#idx_id_62">P</a> <a class="link" href="s04.html#idx_id_63">R</a> <a class="link" href="s04.html#idx_id_64">S</a> <a class="link" href="s04.html#idx_id_65">T</a> <a class="link" href="s04.html#idx_id_66">W</a> <a class="link" href="s04.html#idx_id_67">Z</a>
<div class="variablelist"><dl>
<dt>
-<a name="idx_id_48"></a>A
+<a name="idx_id_51"></a>A
</dt>
<dd><div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none">
abs
<div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none"><a class="link" href="../ref/mp_number.html" title="mp_number">mp_number</a></li></ul></div>
</li></ul></div></dd>
<dt>
-<a name="idx_id_49"></a>B
+<a name="idx_id_52"></a>B
</dt>
<dd><div class="index"><ul class="index" type="none" compact>
<li class="listitem" style="list-style-type: none">
@@ -50,7 +50,7 @@
</li>
</ul></div></dd>
<dt>
-<a name="idx_id_50"></a>C
+<a name="idx_id_53"></a>C
</dt>
<dd><div class="index"><ul class="index" type="none" compact>
<li class="listitem" style="list-style-type: none">
@@ -106,7 +106,7 @@
</li>
</ul></div></dd>
<dt>
-<a name="idx_id_51"></a>D
+<a name="idx_id_54"></a>D
</dt>
<dd><div class="index"><ul class="index" type="none" compact>
<li class="listitem" style="list-style-type: none">
@@ -128,21 +128,21 @@
</li>
</ul></div></dd>
<dt>
-<a name="idx_id_52"></a>E
+<a name="idx_id_55"></a>E
</dt>
<dd><div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none">
eval_get_sign
<div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none"><a class="link" href="../ref/backendconc.html#boost_multiprecision.ref.backendconc.optional_requirements_on_the_backend_type" title="Table 1.5. Optional Requirements on the Backend Type">Optional Requirements on the Backend Type</a></li></ul></div>
</li></ul></div></dd>
<dt>
-<a name="idx_id_53"></a>F
+<a name="idx_id_56"></a>F
</dt>
<dd><div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none">
fpclassify
<div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none"><a class="link" href="../ref/mp_number.html" title="mp_number">mp_number</a></li></ul></div>
</li></ul></div></dd>
<dt>
-<a name="idx_id_54"></a>G
+<a name="idx_id_57"></a>G
</dt>
<dd><div class="index"><ul class="index" type="none" compact>
<li class="listitem" style="list-style-type: none">
@@ -175,7 +175,7 @@
</li>
</ul></div></dd>
<dt>
-<a name="idx_id_55"></a>I
+<a name="idx_id_58"></a>I
</dt>
<dd><div class="index"><ul class="index" type="none" compact>
<li class="listitem" style="list-style-type: none">
@@ -223,7 +223,7 @@
</li>
</ul></div></dd>
<dt>
-<a name="idx_id_56"></a>L
+<a name="idx_id_59"></a>L
</dt>
<dd><div class="index"><ul class="index" type="none" compact>
<li class="listitem" style="list-style-type: none">
@@ -252,7 +252,7 @@
</li>
</ul></div></dd>
<dt>
-<a name="idx_id_57"></a>M
+<a name="idx_id_60"></a>M
</dt>
<dd><div class="index"><ul class="index" type="none" compact>
<li class="listitem" style="list-style-type: none">
@@ -410,14 +410,14 @@
</li>
</ul></div></dd>
<dt>
-<a name="idx_id_58"></a>O
+<a name="idx_id_61"></a>O
</dt>
<dd><div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none">
Optional Requirements on the Backend Type
<div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none"><a class="link" href="../ref/backendconc.html#boost_multiprecision.ref.backendconc.optional_requirements_on_the_backend_type" title="Table 1.5. Optional Requirements on the Backend Type">eval_get_sign</a></li></ul></div>
</li></ul></div></dd>
<dt>
-<a name="idx_id_59"></a>P
+<a name="idx_id_62"></a>P
</dt>
<dd><div class="index"><ul class="index" type="none" compact>
<li class="listitem" style="list-style-type: none">
@@ -437,14 +437,14 @@
</li>
</ul></div></dd>
<dt>
-<a name="idx_id_60"></a>R
+<a name="idx_id_63"></a>R
</dt>
<dd><div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none">
round
<div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none"><a class="link" href="../ref/mp_number.html" title="mp_number">mp_number</a></li></ul></div>
</li></ul></div></dd>
<dt>
-<a name="idx_id_61"></a>S
+<a name="idx_id_64"></a>S
</dt>
<dd><div class="index"><ul class="index" type="none" compact>
<li class="listitem" style="list-style-type: none">
@@ -461,7 +461,7 @@
</li>
</ul></div></dd>
<dt>
-<a name="idx_id_62"></a>T
+<a name="idx_id_65"></a>T
</dt>
<dd><div class="index"><ul class="index" type="none" compact>
<li class="listitem" style="list-style-type: none">
@@ -487,9 +487,20 @@
trunc
<div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none"><a class="link" href="../ref/mp_number.html" title="mp_number">mp_number</a></li></ul></div>
</li>
+<li class="listitem" style="list-style-type: none">
+type
+<div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none"><a class="link" href="../tut/floats/jel.html" title="Worked Example: defining a mathematical function.">Worked Example: defining a mathematical function.</a></li></ul></div>
+</li>
</ul></div></dd>
<dt>
-<a name="idx_id_63"></a>Z
+<a name="idx_id_66"></a>W
+</dt>
+<dd><div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none">
+Worked Example: defining a mathematical function.
+<div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none"><a class="link" href="../tut/floats/jel.html" title="Worked Example: defining a mathematical function.">type</a></li></ul></div>
+</li></ul></div></dd>
+<dt>
+<a name="idx_id_67"></a>Z
</dt>
<dd><div class="index"><ul class="index" type="none" compact><li class="listitem" style="list-style-type: none">
zero

Modified: sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut.html
==============================================================================
--- sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut.html (original)
+++ sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut.html 2012-04-03 14:20:35 EDT (Tue, 03 Apr 2012)
@@ -29,6 +29,8 @@
<dt>gmp_float</dt>
<dt>mpfr_float</dt>
<dt>cpp_dec_float</dt>
+<dt><a href="tut/floats/jel.html">Worked Example:
+ defining a mathematical function.</a></dt>
</dl></dd>
<dt>Rational Number Types</dt>
<dd><dl>

Modified: sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/floats.html
==============================================================================
--- sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/floats.html (original)
+++ sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/floats.html 2012-04-03 14:20:35 EDT (Tue, 03 Apr 2012)
@@ -21,6 +21,8 @@
<dt>gmp_float</dt>
<dt>mpfr_float</dt>
<dt>cpp_dec_float</dt>
+<dt><a href="floats/jel.html">Worked Example:
+ defining a mathematical function.</a></dt>
</dl></div>

The following back-ends provide floating point arithmetic:

Modified: sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/floats/cpp_dec_float.html
==============================================================================
--- sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/floats/cpp_dec_float.html (original)
+++ sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/floats/cpp_dec_float.html 2012-04-03 14:20:35 EDT (Tue, 03 Apr 2012)
@@ -7,11 +7,11 @@
<link rel="home" href="../../../index.html" title="Chapter 1. Boost.Multiprecision">
<link rel="up" href="../floats.html" title="Floating Point Numbers">
<link rel="prev" href="mpfr_float.html" title="mpfr_float">
-<link rel="next" href="../rational.html" title="Rational Number Types">
+<link rel="next" href="jel.html" title="Worked Example: defining a mathematical function.">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<div class="spirit-nav">
-<a accesskey="p" href="mpfr_float.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../floats.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../rational.html"><img src="../../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="mpfr_float.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../floats.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="jel.html"><img src="../../../images/next.png" alt="Next"></a>
</div>
<div class="section boost_multiprecision_tut_floats_cpp_dec_float">
<div class="titlepage"><div><div><h4 class="title">
@@ -111,7 +111,7 @@
</tr></table>
<hr>
<div class="spirit-nav">
-<a accesskey="p" href="mpfr_float.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../floats.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../rational.html"><img src="../../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="mpfr_float.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../floats.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="jel.html"><img src="../../../images/next.png" alt="Next"></a>
</div>
</body>
</html>

Added: sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/floats/jel.html
==============================================================================
--- (empty file)
+++ sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/floats/jel.html 2012-04-03 14:20:35 EDT (Tue, 03 Apr 2012)
@@ -0,0 +1,222 @@
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
+<title>Worked Example: defining a mathematical function.</title>
+<link rel="stylesheet" href="http://www.boost.org/doc/libs/release/doc/src/boostbook.css" type="text/css">
+<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
+<link rel="home" href="../../../index.html" title="Chapter 1. Boost.Multiprecision">
+<link rel="up" href="../floats.html" title="Floating Point Numbers">
+<link rel="prev" href="cpp_dec_float.html" title="cpp_dec_float">
+<link rel="next" href="../rational.html" title="Rational Number Types">
+</head>
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+<div class="spirit-nav">
+<a accesskey="p" href="cpp_dec_float.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../floats.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../rational.html"><img src="../../../images/next.png" alt="Next"></a>
+</div>
+<div class="section boost_multiprecision_tut_floats_jel">
+<div class="titlepage"><div><div><h4 class="title">
+<a name="boost_multiprecision.tut.floats.jel"></a><a class="link" href="jel.html" title="Worked Example: defining a mathematical function.">Worked Example:
+ defining a mathematical function.</a>
+</h4></div></div></div>
+
+ In this example we'll show several implementations of the <a href="http://mathworld.wolfram.com/LambdaFunction.html" target="_top">Jahnke
+ and Emden Lambda function</a>, each implementation a little more sophisticated
+ than the last.
+ 
+
+ The Jahnke-Emden Lambda function is defined by the equation:
+ 
+
+ JahnkeEmden(v, z) = Gamma(v+1) * J[v](z) / (z / 2)^v
+ 
+
+ If we were to implement this at double precision using Boost.Math's facilities
+ for the Gamma and Bessel function calls it would look like this:
+ 
+
+
+<pre class="programlisting">double JEL1(double v, double z)
+{
+ return boost::math::tgamma(v + 1) * boost::math::cyl_bessel_j(v, z) / std::pow(z / 2,
v);
+}
+</pre>
+
+ 
+
+ Calling this function as:
+ 
+<pre class="programlisting">std::cout << std::scientific << std::setprecision(std::numeric_limits<double>::digits10);
+std::cout << JEL1(2.5, 0.5) << std::endl;
+</pre>
+
+ Yields the output:
+ 
+<pre class="programlisting">9.822663964796047e-001</pre>
+
+ Now lets implement the function again, but this time using the multiprecision
+ type <code class="computeroutput">cpp_dec_float_50</code> as
+ the argument type:
+ 
+
+
+<pre class="programlisting">boost::multiprecision::cpp_dec_float_50
+ JEL2(boost::multiprecision::cpp_dec_float_50 v, boost::multiprecision::cpp_dec_float_50 z)
+{
+ return boost::math::tgamma(v + 1) * boost::math::cyl_bessel_j(v, z) / boost::multiprecision::pow(z / 2, v);
+}
+</pre>
+
+ 
+
+ The implementation is almost the same as before, but with one key difference
+ - we can no longer call <code class="computeroutput">std::pow</code>,
+ instead we must call the version inside the <code class="computeroutput">boost::multiprecision</code>
+ namespace. In point of fact, we could have omitted the namespace prefix
+ on the call to <code class="computeroutput">pow</code> since
+ the right overload would have been found via <a href="http://en.wikipedia.org/wiki/Argument-dependent_name_lookup" target="_top">argument
+ dependent lookup</a> in any case.
+ 
+
+ Note also that the first argument to <code class="computeroutput">pow</code>
+ along with the argument to <code class="computeroutput">tgamma</code>
+ in the above code are actually expression templates. The <code class="computeroutput">pow</code> and <code class="computeroutput">tgamma</code>
+ functions will handle these arguments just fine.
+ 
+
+ Here's an example of how the function may be called:
+ 
+<pre class="programlisting">std::cout << std::scientific << std::setprecision(std::numeric_limits<cpp_dec_float_50>::digits10);
+std::cout << JEL2(cpp_dec_float_50(2.5), cpp_dec_float_50(0.5)) << std::endl;
+</pre>
+
+ Which outputs:
+ 
+<pre class="programlisting">9.82266396479604757017335009796882833995903762577173e-01</pre>
+
+ Now that we've seen some non-template examples, lets repeat the code again,
+ but this time as a template that can be called either with a builtin type
+ (<code class="computeroutput">float</code>, <code class="computeroutput">double</code>
+ etc), or with a multiprecision type:
+ 
+
+
+<pre class="programlisting">template <class Float>
+Float JEL3(Float v, Float z)
+{
+ using std::pow;
+ return boost::math::tgamma(v + 1) * boost::math::cyl_bessel_j(v, z) / pow(z / 2, v);
+}
+</pre>
+
+ 
+
+ Once again the code is almost the same as before, but the call to <code class="computeroutput">pow</code> has changed yet again. We need the
+ call to resolve to either <code class="computeroutput">std::pow</code>
+ (when the argument is a builtin type), or to <code class="computeroutput">boost::multiprecision::pow</code>
+ (when the argument is a multiprecision type). We do that by making the
+ call unqualified so that versions of <code class="computeroutput">pow</code>
+ defined in the same namespace as type <code class="computeroutput">Float</code>
+ are found via argument dependent lookup, while the <code class="computeroutput">using
+ std::pow</code> directive makes the standard library
+ versions visible for builtin floating point types.
+ 
+
+ Let's call the function with both <code class="computeroutput">double</code>
+ and multiprecision arguments:
+ 
+<pre class="programlisting">std::cout << std::scientific << std::setprecision(std::numeric_limits<double>::digits10);
+std::cout << JEL3(2.5, 0.5) << std::endl;
+std::cout << std::scientific << std::setprecision(std::numeric_limits<cpp_dec_float_50>::digits10);
+std::cout << JEL3(cpp_dec_float_50(2.5), cpp_dec_float_50(0.5)) << std::endl;
+</pre>
+
+ Which outputs:
+ 
+<pre class="programlisting">9.822663964796047e-001
+9.82266396479604757017335009796882833995903762577173e-01
+</pre>
+
+ Unfortunately there is a problem with this version: if we were to call
+ it like this:
+ 
+<pre class="programlisting">boost::multiprecision::cpp_dec_float_50 v(2), z(0.5);
+JEL3(v + 0.5, z);
+</pre>
+
+ Then we would get a long and inscrutable error message from the compiler:
+ the problem here is that the first argument to <code class="computeroutput">JEL3</code>
+ is not a number type, but an expression template. We could obviously add
+ a typecast to fix the issue:
+ 
+<pre class="programlisting">JEL(cpp_dec_float_50(v + 0.5), z);
+</pre>
+
+ However, if we want the function JEL to be truely reusable, then a better
+ solution might be preferred. To achieve this we can borrow some code from
+ Boost.Math which calculates the return type of mixed-argument functions,
+ here's how the new code looks now:
+ 
+
+
+<pre class="programlisting">template <class Float1, class Float2>
+typename boost::math::tools::promote_args<Float1, Float2>::type
+ JEL4(Float1 v, Float2 z)
+{
+ using std::pow;
+ return boost::math::tgamma(v + 1) * boost::math::cyl_bessel_j(v, z) / pow(z / 2, v);
+}
+</pre>
+
+ 
+
+ As you can see the two arguments to the function are now separate template
+ types, and the return type is computed using the <code class="computeroutput">promote_args</code>
+ metafunction from Boost.Math.
+ 
+
+ Now we can call:
+ 
+<pre class="programlisting">std::cout << std::scientific << std::setprecision(std::numeric_limits<cpp_dec_float_100>::digits10);
+std::cout << JEL4(cpp_dec_float_100(2) + 0.5, cpp_dec_float_100(0.5)) << std::endl;
+</pre>
+
+ And get 100 digits of output:
+ 
+<pre class="programlisting">9.8226639647960475701733500979688283399590376257717309069410413822165082248153638454147004236848917775e-01</pre>
+
+ As a bonus, we can now call the function not just with expression templates,
+ but with other mixed types as well: for example <code class="computeroutput">float</code>
+ and <code class="computeroutput">double</code> or <code class="computeroutput">int</code> and <code class="computeroutput">double</code>,
+ and the correct return type will be computed in each case.
+ 
+
+ Note that while in this case we didn't have to change the body of the function,
+ in the general case any function like this which creates local variables
+ internally would have to use <code class="computeroutput">promote_args</code>
+ to work out what type those variables should be, for example:
+ 
+<pre class="programlisting">template <class Float1, class Float2>
+typename boost::math::tools::promote_args<Float1, Float2>::type
+ JEL5(Float1 v, Float2 z)
+{
+ using std::pow;
+ typedef typename boost::math::tools::promote_args<Float1, Float2>::type variable_type;
+ variable_type t = pow(z / 2, v);
+ return boost::math::tgamma(v + 1) * boost::math::cyl_bessel_j(v, z) / t;
+}
+</pre>
+</div>
+<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
+<td align="left"></td>
+<td align="right"><div class="copyright-footer">Copyright © 2002-2012 John Maddock and Christopher Kormanyos
+ Distributed under the Boost Software License, Version 1.0. (See accompanying
+ file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ 
+</div></td>
+</tr></table>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="cpp_dec_float.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../floats.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../rational.html"><img src="../../../images/next.png" alt="Next"></a>
+</div>
+</body>
+</html>

Modified: sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/rational.html
==============================================================================
--- sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/rational.html (original)
+++ sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/rational.html 2012-04-03 14:20:35 EDT (Tue, 03 Apr 2012)
@@ -6,12 +6,12 @@
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="../../index.html" title="Chapter 1. Boost.Multiprecision">
<link rel="up" href="../tut.html" title="Tutorial">
-<link rel="prev" href="floats/cpp_dec_float.html" title="cpp_dec_float">
+<link rel="prev" href="floats/jel.html" title="Worked Example: defining a mathematical function.">
<link rel="next" href="rational/gmp_rational.html" title="gmp_rational">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<div class="spirit-nav">
-<a accesskey="p" href="floats/cpp_dec_float.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../tut.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="rational/gmp_rational.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="floats/jel.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../tut.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="rational/gmp_rational.html"><img src="../../images/next.png" alt="Next"></a>
</div>
<div class="section boost_multiprecision_tut_rational">
<div class="titlepage"><div><div><h3 class="title">
@@ -246,7 +246,7 @@
</tr></table>
<hr>
<div class="spirit-nav">
-<a accesskey="p" href="floats/cpp_dec_float.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../tut.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="rational/gmp_rational.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="floats/jel.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../tut.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="rational/gmp_rational.html"><img src="../../images/next.png" alt="Next"></a>
</div>
</body>
</html>

Modified: sandbox/big_number/libs/multiprecision/doc/html/index.html
==============================================================================
--- sandbox/big_number/libs/multiprecision/doc/html/index.html (original)
+++ sandbox/big_number/libs/multiprecision/doc/html/index.html 2012-04-03 14:20:35 EDT (Tue, 03 Apr 2012)
@@ -44,6 +44,8 @@
<dt>gmp_float</dt>
<dt>mpfr_float</dt>
<dt>cpp_dec_float</dt>
+<dt><a href="boost_multiprecision/tut/floats/jel.html">Worked Example:
+ defining a mathematical function.</a></dt>
</dl></dd>
<dt>Rational Number Types</dt>
<dd><dl>
@@ -99,7 +101,7 @@
</div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
-<td align="left">Last revised: April 03, 2012 at 15:58:48 GMT</td>
+<td align="left">Last revised: April 03, 2012 at 18:14:12 GMT</td>
<td align="right"><div class="copyright-footer"></div></td>
</tr></table>
<hr>

Modified: sandbox/big_number/libs/multiprecision/doc/multiprecision.qbk
==============================================================================
--- sandbox/big_number/libs/multiprecision/doc/multiprecision.qbk (original)
+++ sandbox/big_number/libs/multiprecision/doc/multiprecision.qbk 2012-04-03 14:20:35 EDT (Tue, 03 Apr 2012)
@@ -556,6 +556,14 @@

[endsect]

+[section:jel Worked Example: defining a mathematical function.]
+
+[import ../example/floating_point_examples.cpp]
+
+[JEL]
+
+[endsect]
+
[endsect]

[section:rational Rational Number Types]

Added: sandbox/big_number/libs/multiprecision/example/floating_point_examples.cpp
==============================================================================
--- (empty file)
+++ sandbox/big_number/libs/multiprecision/example/floating_point_examples.cpp 2012-04-03 14:20:35 EDT (Tue, 03 Apr 2012)
@@ -0,0 +1,194 @@
+///////////////////////////////////////////////////////////////
+// Copyright 2012 John Maddock. Distributed under the Boost
+// Software License, Version 1.0. (See accompanying file
+// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_
+
+#include <boost/multiprecision/cpp_dec_float.hpp>
+#include <boost/math/special_functions/gamma.hpp>
+#include <boost/math/special_functions/bessel.hpp>
+#include <iostream>
+#include <iomanip>
+
+//[JEL
+
+/*`
+In this example we'll show several implementations of the
+[@http://mathworld.wolfram.com/LambdaFunction.html Jahnke and Emden Lambda function],
+each implementation a little more sophisticated than the last.
+
+The Jahnke-Emden Lambda function is defined by the equation:
+
+JahnkeEmden(v, z) = Gamma(v+1) * J[v](z) / (z / 2)^v
+
+If we were to implement this at double precision using Boost.Math's facilities for the Gamma and Bessel
+function calls it would look like this:
+
+*/
+
+double JEL1(double v, double z)
+{
+ return boost::math::tgamma(v + 1) * boost::math::cyl_bessel_j(v, z) / std::pow(z / 2, v);
+}
+
+/*`
+Calling this function as:
+
+ std::cout << std::scientific << std::setprecision(std::numeric_limits<double>::digits10);
+ std::cout << JEL1(2.5, 0.5) << std::endl;
+
+Yields the output:
+
+[pre 9.822663964796047e-001]
+
+Now lets implement the function again, but this time using the multiprecision type
+`cpp_dec_float_50` as the argument type:
+
+*/
+
+boost::multiprecision::cpp_dec_float_50
+ JEL2(boost::multiprecision::cpp_dec_float_50 v, boost::multiprecision::cpp_dec_float_50 z)
+{
+ return boost::math::tgamma(v + 1) * boost::math::cyl_bessel_j(v, z) / boost::multiprecision::pow(z / 2, v);
+}
+
+/*`
+The implementation is almost the same as before, but with one key difference - we can no longer call
+`std::pow`, instead we must call the version inside the `boost::multiprecision` namespace. In point of
+fact, we could have omitted the namespace prefix on the call to `pow` since the right overload would
+have been found via [@http://en.wikipedia.org/wiki/Argument-dependent_name_lookup
+argument dependent lookup] in any case.
+
+Note also that the first argument to `pow` along with the argument to `tgamma` in the above code
+are actually expression templates. The `pow` and `tgamma` functions will handle these arguments
+just fine.
+
+Here's an example of how the function may be called:
+
+ std::cout << std::scientific << std::setprecision(std::numeric_limits<cpp_dec_float_50>::digits10);
+ std::cout << JEL2(cpp_dec_float_50(2.5), cpp_dec_float_50(0.5)) << std::endl;
+
+Which outputs:
+
+[pre 9.82266396479604757017335009796882833995903762577173e-01]
+
+Now that we've seen some non-template examples, lets repeat the code again, but this time as a template
+that can be called either with a builtin type (`float`, `double` etc), or with a multiprecision type:
+
+*/
+
+template <class Float>
+Float JEL3(Float v, Float z)
+{
+ using std::pow;
+ return boost::math::tgamma(v + 1) * boost::math::cyl_bessel_j(v, z) / pow(z / 2, v);
+}
+
+/*`
+
+Once again the code is almost the same as before, but the call to `pow` has changed yet again.
+We need the call to resolve to either `std::pow` (when the argument is a builtin type), or
+to `boost::multiprecision::pow` (when the argument is a multiprecision type). We do that by
+making the call unqualified so that versions of `pow` defined in the same namespace as type
+`Float` are found via argument dependent lookup, while the `using std::pow` directive makes
+the standard library versions visible for builtin floating point types.
+
+Let's call the function with both `double` and multiprecision arguments:
+
+ std::cout << std::scientific << std::setprecision(std::numeric_limits<double>::digits10);
+ std::cout << JEL3(2.5, 0.5) << std::endl;
+ std::cout << std::scientific << std::setprecision(std::numeric_limits<cpp_dec_float_50>::digits10);
+ std::cout << JEL3(cpp_dec_float_50(2.5), cpp_dec_float_50(0.5)) << std::endl;
+
+Which outputs:
+
+[pre
+9.822663964796047e-001
+9.82266396479604757017335009796882833995903762577173e-01
+]
+
+Unfortunately there is a problem with this version: if we were to call it like this:
+
+ boost::multiprecision::cpp_dec_float_50 v(2), z(0.5);
+ JEL3(v + 0.5, z);
+
+Then we would get a long and inscrutable error message from the compiler: the problem here is that the first
+argument to `JEL3` is not a number type, but an expression template. We could obviously add a typecast to
+fix the issue:
+
+ JEL(cpp_dec_float_50(v + 0.5), z);
+
+However, if we want the function JEL to be truely reusable, then a better solution might be preferred.
+To achieve this we can borrow some code from Boost.Math which calculates the return type of mixed-argument
+functions, here's how the new code looks now:
+
+*/
+
+template <class Float1, class Float2>
+typename boost::math::tools::promote_args<Float1, Float2>::type
+ JEL4(Float1 v, Float2 z)
+{
+ using std::pow;
+ return boost::math::tgamma(v + 1) * boost::math::cyl_bessel_j(v, z) / pow(z / 2, v);
+}
+
+/*`
+
+As you can see the two arguments to the function are now separate template types, and
+the return type is computed using the `promote_args` metafunction from Boost.Math.
+
+Now we can call:
+
+ std::cout << std::scientific << std::setprecision(std::numeric_limits<cpp_dec_float_100>::digits10);
+ std::cout << JEL4(cpp_dec_float_100(2) + 0.5, cpp_dec_float_100(0.5)) << std::endl;
+
+And get 100 digits of output:
+
+[pre 9.8226639647960475701733500979688283399590376257717309069410413822165082248153638454147004236848917775e-01]
+
+As a bonus, we can now call the function not just with expression templates, but with other mixed types as well:
+for example `float` and `double` or `int` and `double`, and the correct return type will be computed in each case.
+
+Note that while in this case we didn't have to change the body of the function, in the general case
+any function like this which creates local variables internally would have to use `promote_args`
+to work out what type those variables should be, for example:
+
+ template <class Float1, class Float2>
+ typename boost::math::tools::promote_args<Float1, Float2>::type
+ JEL5(Float1 v, Float2 z)
+ {
+ using std::pow;
+ typedef typename boost::math::tools::promote_args<Float1, Float2>::type variable_type;
+ variable_type t = pow(z / 2, v);
+ return boost::math::tgamma(v + 1) * boost::math::cyl_bessel_j(v, z) / t;
+ }
+
+*/
+
+//]
+
+int main()
+{
+ using namespace boost::multiprecision;
+ std::cout << std::scientific << std::setprecision(std::numeric_limits<double>::digits10);
+ std::cout << JEL1(2.5, 0.5) << std::endl;
+ std::cout << std::scientific << std::setprecision(std::numeric_limits<cpp_dec_float_50>::digits10);
+ std::cout << JEL2(cpp_dec_float_50(2.5), cpp_dec_float_50(0.5)) << std::endl;
+ std::cout << std::scientific << std::setprecision(std::numeric_limits<double>::digits10);
+ std::cout << JEL3(2.5, 0.5) << std::endl;
+ std::cout << std::scientific << std::setprecision(std::numeric_limits<cpp_dec_float_50>::digits10);
+ std::cout << JEL3(cpp_dec_float_50(2.5), cpp_dec_float_50(0.5)) << std::endl;
+ std::cout << std::scientific << std::setprecision(std::numeric_limits<cpp_dec_float_100>::digits10);
+ std::cout << JEL4(cpp_dec_float_100(2) + 0.5, cpp_dec_float_100(0.5)) << std::endl;
+ return 0;
+}
+
+/*
+
+Program output:
+
+9.822663964796047e-001
+9.82266396479604757017335009796882833995903762577173e-01
+9.822663964796047e-001
+9.82266396479604757017335009796882833995903762577173e-01
+9.8226639647960475701733500979688283399590376257717309069410413822165082248153638454147004236848917775e-01
+*/
\ No newline at end of file

Next message: lorcaminiti_at_[hidden]: "[Boost-commit] svn:boost r77747 - in trunk/libs/local_function: example test"
Previous message: antoshkka_at_[hidden]: "[Boost-commit] svn:boost r77745 - trunk/libs/conversion"

Date view	Thread view	Subject view	Author view

Boost-Commit list run by bdawes at acm.org, david.abrahams at rcn.com, gregod at cs.rpi.edu, cpdaniel at pacbell.net, john at johnmaddock.co.uk