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Subject: Re: [Boost-users] Is there a C++ implementation for numerical quadrature/cubature?
From: Easior Lars (easior.lars_at_[hidden])
Date: 2017-08-20 02:09:32

>>>>> "JMvB" == John Maddock via Boost-users <boost-users_at_[hidden]> writes:

Thank you for your useful information.

    JMvB> * The next release will have fairly simple adaptive trapezoidal quadrature.
    JMvB> * I'm trying to quash the last few CI failures for double-exponential quadrature
    JMvB> now (tanh-sinh, exp-sinh and sinh-sinh) - that looks to be a remarkably efficient
    JMvB> and general purpose integrator (and yes it works very well with arbitrary
    JMvB> precision types). That's targeted for 1.66.
    JMvB> * We have the bits in place for adaptive Gauss-Konrad, but haven't worked out the
    JMvB> details yet.... not sure if that one will make 1.66 or a later release.

I have forked boost math library on GitHub and want to make some
testing. However, I have three issues to ask you:

* Which branch does the quadrature exist in? develop or other branch?
* Can I build boost library just only with math module? I guess, I
  should checkout all of boost modules in order to success in
  building boost library.
    JMvB> If you wanted to try out the double-exponential code now, it's here:
    JMvB>, I've currently broken the tests (!),
    JMvB> but the headers are all ready to go, and if you'd like to give the new code a
    JMvB> test drive and report back that would be great. As with most quadrature routines,
    JMvB> it's fairly easy to break if you're cunning enough (which is why the tests are
    JMvB> currently broken!), but it does handle endpoint singularities very well, and is a
    JMvB> lot more robust and efficient than I expected. I've put a PDF build of the docs
    JMvB> from that branch here:
    JMvB> will need to navigate to the tools->quadrature section (page 745).
* Can you tell how to build Boost.math documentation? I found it is
  diffcult to build Boost documentations by boostbook. Is there any
  guideline to do this?

Best wishes,
Easior Lars
"It was the age of wisdom, it was the age of foolishness, it was the
epoch of belief, it was the epoch of incredulity, it was the season of
Light, it was the season of Darkness, it was the spring of hope, it
was the winter of despair, we had everything before us, we had nothing
before us, we were all going direct to heaven, we were all going
direct the other way - in short, the period was so far like the
present period, that some of its noisiest authorities insisted on its
being received, for good or for evil, in the superlative degree of
comparison only."
                               TALES OF TWO CITIES, by Charles Dickens

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