Merge pull request #340 from pv/fix-cerf

BUG: special: fix accuracy issues in complex erf by using a different implementation

This PR changes complex-valued erf family functions to use implementations from
Steven G. Johnson's Faddeeva package. This is more numerically stable than the
previously used implementation.

Closes Trac #1207, #1699, #1757, #1758, #1759

MANIFEST.in

@@ -8,8 +8,11 @@ include setupscons.py
 include setupegg.py
 include setup.py
 include scipy/*.py
+# Add Cython files
+recursive-include scipy *.pyx *.pxd *.pxi
 # Adding scons build related files not found by distutils
 recursive-include scipy SConstruct SConscript
+recursive-include scipy README
 # Add files to allow Bento build
 include f2py.py
 include interface_gen.py
@@ -26,3 +29,4 @@ recursive-include doc/release *
 recursive-include doc/source *
 recursive-include doc/sphinxext *
 prune scipy/special/tests/data/boost
+include scipy/special/Faddeeva.hh

THANKS.txt

@@ -109,6 +109,7 @@ Alex Reinhart for documentation improvements.
 Patrick Varilly for cKDTree improvements.
 Sturla Molden for cKDTree improvements.
 Nathan Crock for bug fixes.
+Steven G. Johnson for Faddeeva W and erf* implementations.
 
 
 Institutions