Re: [GiNaC-list] Fwd: GiNaC error when trying to evaluate sin(x)^2 expression

22 Dec 2013

      Hi,
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On Sat, 21 Dec 2013 18:59:08 +0000, José Pontes <pontesjpc@gmail.com> said:
JP> symbol x;
    JP> ex exTest = sin(x)*sin(x);
    JP> exmap map;
    JP> map[x] = 1.0;
    JP> cout << exTest.subs(map) << endl;

    I tried your code and get the answer

0.70807341827357119353

  The same output come out if the last line is written as:

cout << exTest.subs(x==1.0) << endl;

  I am using GiNaC v.1.6.2 and cln v1.3.3 on Debian unstable Linux.

  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