23 Commits

Author SHA1 Message Date
Till Hoffmann
a350c25a39 Added accuracy comments. 2016-04-05 18:20:40 +01:00
Till Hoffmann
b97911dd18 Refactored code into type-specific helper functions. 2016-04-04 19:16:03 +01:00
Till Hoffmann
3cb0a237c1 Fixed suggestions by Eugene Brevdo. 2016-04-01 17:51:39 +01:00
Till Hoffmann
57239f4a81 Added polygamma function. 2016-04-01 14:35:21 +01:00
Till Hoffmann
dd5d390daf Added zeta function. 2016-04-01 13:32:29 +01:00
Benoit Steiner
2e4e4cb74d Use numext::abs instead of abs to avoid incorrect conversion to integer of the argument 2016-03-23 16:57:12 -07:00
Eugene Brevdo
836e92a051 Update MathFunctions/SpecialFunctions with intelligent header guards. 2016-03-09 09:04:45 -08:00
Eugene Brevdo
14f0fde51f Add certain functions to numext (log, exp, tan) because CUDA doesn't support std::
Use these in SpecialFunctions.
2016-03-08 17:17:44 -08:00
Eugene Brevdo
6afea46838 Add infinity() support to numext::numeric_limits, use it in lgamma.
This makes the infinity access a __device__ function, removing
nvcc warnings.
2016-03-02 21:35:48 -08:00
Eugene Brevdo
06a2bc7c9c Tiny bugfix in SpecialFunctions: some compilers don't like doubles
implicitly downcast to floats in an array constructor.
2016-02-17 14:41:59 -08:00
Benoit Steiner
bcbde37a11 Made sure the code compiles when EIGEN_HAS_C99_MATH isn't defined 2016-02-03 14:53:08 -08:00
Gael Guennebaud
f50bb1e6f3 Fix compilation with gcc 2016-01-28 13:25:26 +01:00
Eugene Brevdo
c8d94ae944 digamma special function: merge shared code.
Moved type-specific code into a helper class digamma_impl_maybe_poly<Scalar>.
2016-01-27 09:52:29 -08:00
Eugene Brevdo
6a75e7e0d5 Digamma cleanup
* Added permission from cephes author to use his code
* Cleanup in ArrayCwiseUnaryOps
2016-01-15 16:32:21 -08:00
Eugene Brevdo
f2471f31e0 Modify constants in SpecialFunctions to lowercase (avoid name conflicts). 2015-12-28 17:48:38 -08:00
Eugene Brevdo
afb35385bf Change PI* to M_PI* in SpecialFunctions to avoid possible breakage
with external DEFINEs.
2015-12-28 17:34:06 -08:00
Eugene Brevdo
f7362772e3 Add digamma for CPU + CUDA. Includes tests. 2015-12-24 21:15:38 -08:00
Gael Guennebaud
4483c0fdf6 Fix unused variable warning. 2015-12-11 23:29:53 +01:00
Benoit Steiner
58e06447de Silence a compilation warning 2015-12-10 13:11:36 -08:00
Benoit Steiner
48877a6933 Only implement the lgamma, erf, and erfc functions when using a compiler compliant with the C99 specification. 2015-12-10 13:09:49 -08:00
Benoit Steiner
53b196aa5f Simplified the implementation of lgamma, erf, and erfc 2015-12-08 14:17:34 -08:00
Benoit Steiner
73b68d4370 Fixed a couple of typos
Cleaned up the code a bit.
2015-12-07 16:38:48 -08:00
Eugene Brevdo
fa4f933c0f Add special functions to Eigen: lgamma, erf, erfc.
Includes CUDA support and unit tests.
2015-12-07 15:24:49 -08:00