- changed function::diff() to be more tolerant by checking first if the
authorRichard Kreckel <Richard.Kreckel@uni-mainz.de>
Mon, 29 Nov 1999 22:50:42 +0000 (22:50 +0000)
committerRichard Kreckel <Richard.Kreckel@uni-mainz.de>
Mon, 29 Nov 1999 22:50:42 +0000 (22:50 +0000)
commitbe0485a03e9886496eeb7e8cdc2cc5c95b848632
tree1fd39b192679f0b68e05fe74289aa516f348a089
parenta87e6ee6d794b99dcf3946e7dde969edafeb3295
- changed function::diff() to be more tolerant by checking first if the
  nth argument when differentiated is non-zero and *then* building the sum.
- added support for overloaded polygamma functions psi(x) and psi(n,x).
- changed return code of atan2_diff to be somewhat simpler and adjusted
  check/differentiation.cpp to account for this.
check/differentiation.cpp
ginac/diff.cpp
ginac/inifcns.h
ginac/inifcns_gamma.cpp
ginac/inifcns_trans.cpp
ginac/numeric.cpp
ginac/numeric.h