Top
Back: appelF2
Forward: engine
FastBack: dmod_lib
FastForward: freegb_lib
Up: dmodapp_lib
Top: Singular Manual
Contents: Table of Contents
Index: Index
About: About this document
7.7.4.0. appelF4
Procedure from library dmodapp.lib (see dmodapp_lib).

Usage:
appelF4();

Return:
ring (and exports an ideal into it)

Purpose:
define the ideal in a parametric Weyl algebra,
which annihilates Appel F4 hypergeometric function

Note:
the ideal called IAppel4 is exported to the output ring

Example:
 
LIB "dmodapp.lib";
def A = appelF4();
setring A;
IAppel4;
==> IAppel4[1]=-x^2*Dx^2+x*Dx^2-2*x*y*Dx*Dy-y^2*Dy^2+(-a-b-1)*x*Dx+(c)*Dx+(-a\
   -b-1)*y*Dy+(-a*b)
==> IAppel4[2]=-x^2*Dx^2-2*x*y*Dx*Dy-y^2*Dy^2+y*Dy^2+(-a-b-1)*x*Dx+(-a-b-1)*y\
   *Dy+(d)*Dy+(-a*b)


Top Back: appelF2 Forward: engine FastBack: dmod_lib FastForward: freegb_lib Up: dmodapp_lib Top: Singular Manual Contents: Table of Contents Index: Index About: About this document
            User manual for Singular version 3-1-1, Feb 2010, generated by texi2html.