From c8e2c9967b23aac88c91771dac5d1f5f04589f18 Mon Sep 17 00:00:00 2001
From: Christian Bauer
Date: Fri, 1 Jun 2001 22:45:53 +0000
Subject: [PATCH] documentation update
---
NEWS | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/NEWS b/NEWS
index 962876ed..d5d29512 100644
--- a/NEWS
+++ b/NEWS
@@ -1,18 +1,26 @@
This file records noteworthy changes.
0.8.4 ()
+* In the output and in ginsh, lists are now delimited by { } braces, and
+ matrices are delimited by single [ ] brackets.
* simplify_indexed() renames dummy indices so, e.g., "a.i*a.i+a.j*a.j" gets
simplified to "2*a.i*a.i".
-* Added canonicalize_clifford() function that can be helpful when comparing
- expressions containing Dirac matrices.
+* New functions/methods:
+ - canonicalize_clifford() (helpful when comparing expressions containing
+ Dirac matrices)
+ - symmetrize() and antisymmetrize()
+ - numer_denom() (return numerator and denominator)
+ - map() (apply function to subexpressions)
+ - evalm() (evaluate sums and products of matrices)
* Added a new function match() for performing pattern matching. subs() and
has() also accept patterns as arguments. A pattern can be any expression,
optionally containing wildcard objects. These are constructed with the
call "wild()" and are denoted as "$0", "$1" etc. in the output
and in ginsh.
-* Added symmetrize(), antisymmetrize() and numer_denom() functions.
* Fixed possible crash when calling subs() on expressions with non-commutative
products.
+* Positive integer powers of non-commutative expressions are automatically
+ expanded.
0.8.3 (11 May 2001)
* color and clifford classes are functional and documented.
--
2.25.4