diff options
Diffstat (limited to 'src/algebra')
| -rw-r--r-- | src/algebra/combfunc.spad.pamphlet | 2 |
1 files changed, 1 insertions, 1 deletions
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) |