From 0af4f02790c8ae93f74b833a492c4a39ba7c342a Mon Sep 17 00:00:00 2001 From: Christian Bauer Date: Thu, 5 Apr 2001 19:44:47 +0000 Subject: [PATCH] - subs() can be used to substitute functions, tensors and indexed objects - op(0) of an idx object returns the index value; a nice side-effect of this is that idx'es no longer all have the same hash value --- NEWS | 2 ++ 1 file changed, 2 insertions(+) diff --git a/NEWS b/NEWS index 2283ab90..a2ef2d1f 100644 --- a/NEWS +++ b/NEWS @@ -12,6 +12,8 @@ This file records noteworthy changes. gamma~0 in p.mu*gamma~mu should be p.0 but is returned as 0 - using coeff(), tcoeff(), lcoeff() or collect() on elements of noncommutative products might return wrong or surprising results +* Likewise, subs() can be used to substitute functions, tensors and indexed + expressions. * Added preliminary (re)implementations of color and clifford classes. * simplify_indexed(): contraction of symmetric and antisymmetric tensors is zero. -- 2.44.0