From 65dfcc0a0e53c2fa74f62fe2eb69d7e37149475f Mon Sep 17 00:00:00 2001 From: dos-reis Date: Tue, 26 Aug 2014 10:14:22 +0000 Subject: (iBesselKGrad)[FunctionalSpecialFunction]: Fix thinko --- src/ChangeLog | 7 ++++++- src/algebra/combfunc.spad.pamphlet | 2 +- 2 files changed, 7 insertions(+), 2 deletions(-) (limited to 'src') diff --git a/src/ChangeLog b/src/ChangeLog index f3318a06..1a2e80f0 100644 --- a/src/ChangeLog +++ b/src/ChangeLog @@ -1,4 +1,9 @@ -2014-08-26 Gabriel Dos Reis +2014-08-26 Raoul B. + + * algebra/combfunc.spad.pamphlet + (iBesselKGrad)[FunctionalSpecialFunction]: Fix thinko. + +2014-08-26 Gabriel Dos Reis * Makefile.am (oa_src_include_headers): Remove. These headers are now linked by configure. diff --git a/src/algebra/combfunc.spad.pamphlet b/src/algebra/combfunc.spad.pamphlet index d89697fd..80be59fd 100644 --- a/src/algebra/combfunc.spad.pamphlet +++ b/src/algebra/combfunc.spad.pamphlet @@ -768,7 +768,7 @@ FunctionalSpecialFunction(R, F): Exports == Implementation where ahalf * (besselI (n-1,x) + besselI (n+1,x)) iBesselKGrad(l: List F): F == n := first l; x := second l - ahalf * (besselK (n-1,x) + besselK (n+1,x)) + ahalf * (-besselK (n-1,x) - besselK (n+1,x)) ipolygammaGrad(l: List F): F == n := first l; x := second l polygamma(n+1, x) -- cgit v1.2.3