C special math functions with bsd/mit - like license

are you aware of a trusted (i.e. efficient and accurate) implementation of special math functions (like gamma, beta, error and inverse error functions) for the C language available with a non-gpl license? BSD or MIT licenses are fine.

So something like: http://www.gnu.org/software/gsl/manual/html_node/Special-Functions.html

but with a more permissive license. I am aware boost have something similar but it's a bit overkill to add dependency on boost just for thi开发者_如何学运维s... Moreover C would be preferable in this context...

Thanks!

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The answers to the questions below contain links to some excellent libraries, including fdlibm and cephes:

• C library of single-precision transcendental functions
• long double math library implementations?
• Platform independent math library

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ATLAS has C bindings. http://math-atlas.sourceforge.net/ ATLAS has a BSD style license. http://math-atlas.sourceforge.net/faq.html#license

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C99 stdlib has the functions you mentioned, there's no need to go with an external library: http://en.cppreference.com/w/c/numeric/math

Just look for a cstdlib implementation that suits your licensing needs. glibc is released under LGPL btw (not the same as GPL)!