From 69e013fb791c9fde5ed2395c73c98454b47c577f Mon Sep 17 00:00:00 2001 From: Jens Vollinga Date: Fri, 22 Apr 2005 15:29:29 +0000 Subject: [PATCH] Added explanation of numerical evaluation of color_f and friends. --- doc/tutorial/ginac.texi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/doc/tutorial/ginac.texi b/doc/tutorial/ginac.texi index b65e71e1..4a29969f 100644 --- a/doc/tutorial/ginac.texi +++ b/doc/tutorial/ginac.texi @@ -3507,6 +3507,11 @@ create the symmetric and antisymmetric structure constants @math{d_abc} and @math{f_abc} which satisfy @math{@{T_a, T_b@} = 1/3 delta_ab + d_abc T_c} and @math{[T_a, T_b] = i f_abc T_c}. +These functions evaluate to their numerical values, +if you supply numeric indices to them. The index values should be in +the range from 1 to 8, not from 0 to 7. This departure from usual conventions +goes along better with the notations used in physical literature. + @cindex @code{color_h()} There's an additional function -- 2.44.0