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Subject: [Boost-commit] svn:boost r77607 - in sandbox/big_number/libs/multiprecision: doc/html doc/html/boost_multiprecision/tut example
From: john_at_[hidden]
Date: 2012-03-28 13:47:42

Author: johnmaddock
Date: 2012-03-28 13:47:41 EDT (Wed, 28 Mar 2012)
New Revision: 77607
URL: http://svn.boost.org/trac/boost/changeset/77607

Log:
Update floating point examples to show Boost.Math usage.
Text files modified:
   sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/ints.html | 2 +-
   sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/reals.html | 15 +++++++++++++++
   sandbox/big_number/libs/multiprecision/doc/html/index.html | 2 +-
   sandbox/big_number/libs/multiprecision/example/cpp_dec_float_snips.cpp | 6 ++++++
   sandbox/big_number/libs/multiprecision/example/gmp_snips.cpp | 6 ++++++
   sandbox/big_number/libs/multiprecision/example/mpfr_snips.cpp | 6 ++++++
   6 files changed, 35 insertions(+), 2 deletions(-)

Modified: sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/ints.html
==============================================================================
--- sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/ints.html (original)
+++ sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/ints.html 2012-03-28 13:47:41 EDT (Wed, 28 Mar 2012)
@@ -295,7 +295,7 @@

std::cout << v << std::endl; // prints 20!

-// Try again at arbitrary precision:
+// Repeat at arbitrary precision:
cpp_int u = 1;
for(unsigned i = 1; i <= 100; ++i)
u *= i;

Modified: sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/reals.html
==============================================================================
--- sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/reals.html (original)
+++ sandbox/big_number/libs/multiprecision/doc/html/boost_multiprecision/tut/reals.html 2012-03-28 13:47:41 EDT (Wed, 28 Mar 2012)
@@ -286,7 +286,12 @@
// Operations at fixed precision and full standard library support:
mpf_float_100 b = 2;
std::cout << std::numeric_limits<mpf_float_100>::digits << std::endl;
+// We can use any C++ std lib function:
std::cout << log(b) << std::endl; // print log(2)
+// We can also use any function from Boost.Math:
+std::cout << boost::math::tgamma(b) << std::endl;
+// These even work when the argument is an expression template:
+std::cout << boost::math::tgamma(b * b) << std::endl;

// Access the underlying representation:
mpf_t f;
@@ -407,7 +412,12 @@
// Operations at fixed precision and full numeric_limits support:
mpfr_float_100 b = 2;
std::cout << std::numeric_limits<mpfr_float_100>::digits << std::endl;
+// We can use any C++ std lib function:
std::cout << log(b) << std::endl; // print log(2)
+// We can also use any function from Boost.Math:
+std::cout << boost::math::tgamma(b) << std::endl;
+// These even work when the argument is an expression template:
+std::cout << boost::math::tgamma(b * b) << std::endl;

// Access the underlying data:
mpfr_t r;
@@ -485,7 +495,12 @@
// Operations at fixed precision and full numeric_limits support:
cpp_dec_float_100 b = 2;
std::cout << std::numeric_limits<cpp_dec_float_100>::digits << std::endl;
+// We can use any C++ std lib function:
std::cout << log(b) << std::endl; // print log(2)
+// We can also use any function from Boost.Math:
+std::cout << boost::math::tgamma(b) << std::endl;
+// These even work when the argument is an expression template:
+std::cout << boost::math::tgamma(b * b) << std::endl;
</pre>

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 2012-03-28 13:47:41 EDT (Wed, 28 Mar 2012)
@@ -66,7 +66,7 @@
</div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
-<td align="left">Last revised: March 28, 2012 at 17:05:42 GMT</td>
+<td align="left">Last revised: March 28, 2012 at 17:43:15 GMT</td>
<td align="right"><div class="copyright-footer"></div></td>
</tr></table>
<hr>

Modified: sandbox/big_number/libs/multiprecision/example/cpp_dec_float_snips.cpp
==============================================================================
--- sandbox/big_number/libs/multiprecision/example/cpp_dec_float_snips.cpp (original)
+++ sandbox/big_number/libs/multiprecision/example/cpp_dec_float_snips.cpp 2012-03-28 13:47:41 EDT (Wed, 28 Mar 2012)
@@ -4,6 +4,7 @@
// 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 <iostream>

void t1()
@@ -16,7 +17,12 @@
 // Operations at fixed precision and full numeric_limits support:
 cpp_dec_float_100 b = 2;
 std::cout << std::numeric_limits<cpp_dec_float_100>::digits << std::endl;
+ // We can use any C++ std lib function:
 std::cout << log(b) << std::endl; // print log(2)
+ // We can also use any function from Boost.Math:
+ std::cout << boost::math::tgamma(b) << std::endl;
+ // These even work when the argument is an expression template:
+ std::cout << boost::math::tgamma(b * b) << std::endl;
 //]
}

Modified: sandbox/big_number/libs/multiprecision/example/gmp_snips.cpp
==============================================================================
--- sandbox/big_number/libs/multiprecision/example/gmp_snips.cpp (original)
+++ sandbox/big_number/libs/multiprecision/example/gmp_snips.cpp 2012-03-28 13:47:41 EDT (Wed, 28 Mar 2012)
@@ -4,6 +4,7 @@
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_

#include <boost/multiprecision/gmp.hpp>
+#include <boost/math/special_functions/gamma.hpp>
#include <iostream>

void t1()
@@ -44,7 +45,12 @@
 // Operations at fixed precision and full standard library support:
 mpf_float_100 b = 2;
 std::cout << std::numeric_limits<mpf_float_100>::digits << std::endl;
+ // We can use any C++ std lib function:
 std::cout << log(b) << std::endl; // print log(2)
+ // We can also use any function from Boost.Math:
+ std::cout << boost::math::tgamma(b) << std::endl;
+ // These even work when the argument is an expression template:
+ std::cout << boost::math::tgamma(b * b) << std::endl;

 // Access the underlying representation:
 mpf_t f;

Modified: sandbox/big_number/libs/multiprecision/example/mpfr_snips.cpp
==============================================================================
--- sandbox/big_number/libs/multiprecision/example/mpfr_snips.cpp (original)
+++ sandbox/big_number/libs/multiprecision/example/mpfr_snips.cpp 2012-03-28 13:47:41 EDT (Wed, 28 Mar 2012)
@@ -4,6 +4,7 @@
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_

#include <boost/multiprecision/mpfr.hpp>
+#include <boost/math/special_functions/gamma.hpp>
#include <iostream>

void t1()
@@ -22,7 +23,12 @@
 // Operations at fixed precision and full numeric_limits support:
 mpfr_float_100 b = 2;
 std::cout << std::numeric_limits<mpfr_float_100>::digits << std::endl;
+ // We can use any C++ std lib function:
 std::cout << log(b) << std::endl; // print log(2)
+ // We can also use any function from Boost.Math:
+ std::cout << boost::math::tgamma(b) << std::endl;
+ // These even work when the argument is an expression template:
+ std::cout << boost::math::tgamma(b * b) << std::endl;

 // Access the underlying data:
 mpfr_t r;

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