[GiNaC-devel] Housekeeping work in inifcns.cpp

[Vladimir V. Kisil]

	Dear All,

	I made a bit of housekeeping work in inifcns.cpp:
 1) Make abs_power aware on even powers, even if they are not numeric. 

 2) Add several hold() to returns, which cannot be processed
 further. I shall admit, that this can be misdone, so please check.

 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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