[GiNaC-devel] Log evaluation

[Vladimir V. Kisil]

	Dear All,

	I propose to add the evaluation rule 
	log(p^a) -> a*log(p) if p>0 and a is real.

	The patch (including the respective check) is attached.

	Best wishes,
	Vladimir
-- 
Vladimir V. Kisil     email: kisilv at 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
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