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Re: [Axiom-developer] series2.output


From: Gregory Vanuxem
Subject: Re: [Axiom-developer] series2.output
Date: Sat, 03 Feb 2007 16:37:40 +0100

There is a apparently a problem in the Build-improvements branch or may
be in GCL, I have no idea (I can reproduce the following on MathAction
(build-improvements)):

=======================================================================
Gold:

(2) -> f:=taylor(1-x^2)

             2
   (2)  1 - x
                   Type: UnivariateTaylorSeries(Expression Integer,x,0)
(3) -> sin asin f

             2      11
   (3)  1 - x  + O(x  )
========================================================================
Build-improvements:
========================================================================
(11) -> f:=taylor(1-x^2)

              2
   (11)  1 - x
                  Type: UnivariateTaylorSeries(Expression Integer,x,0)

(12) -> sin asin f

             1  4    1  6    7   8     5   10      11
   (12)  1 - - x  - -- x  - --- x  - ---- x   + O(x  )
             4      16      768      3072
                  Type: UnivariateTaylorSeries(Expression Integer,x,0)
========================================================================

etc... (see series2.input)

Greg






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