More rules to mul::info()
29 Jul
2013
29 Jul
'13
6:25 p.m.
Dear All, Looking into flags (as Alexei suggested) I noticed, that GiNaC is not aware about a product of two negative entries to be positive. I am attaching a patch to amend this. Best wishes, Vladimir -- Vladimir V. Kisil email: kisilv@maths.leeds.ac.uk www: http://www.maths.leeds.ac.uk/~kisilv/ Book: Geometry of Mobius Transformations http://www.worldscientific.com/worldscibooks/10.1142/p835
2 Aug
2 Aug
6:52 p.m.
Hello,
Subject: [PATCH 2/2] Elaborate mul::info(). Add to mul::info() rules that a) a product of two negative entries is positive; b) a product of a positive and non-negative entries is non-negative.
I've merged this one (with a slightly different commit message). Best regards, Alexei
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Alexei Sheplyakov
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Vladimir V. Kisil