On Mon, Dec 14, 2009 at 3:11 PM, Christophe BAL <[email protected]> wrote:
> Hello,
> is it possible to know the formulas used by sympy when simplications are
> done using for example trigsimp ?
Yes, those are in:
sympy/simplify/simplify.py
line 876. This is really simple now:
matchers = (
(a*sin(b)**c/cos(b)**c, a*tan(b)**c),
(a*tan(b)**c*cos(b)**c, a*sin(b)**c),
(a*cot(b)**c*sin(b)**c, a*cos(b)**c),
(a*tan(b)**c/sin(b)**c, a/cos(b)**c),
(a*cot(b)**c/cos(b)**c, a/sin(b)**c),
)
Luke started to write a state of the art algorithm for this, but it's
not finished yet.
Ondrej
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