Comment #23 on issue 111 by [email protected]: Simplification of trig expressions
http://code.google.com/p/sympy/issues/detail?id=111
trigsimp(cos(x) * sin(y) + sin(x) * cos(y))
sin(x + y)
trigsimp(3*sin(5)**2+3*cos(5)**2+6)
9
trigsimp(sin(x)**2*sin(y)**2 + cos(x)**2*sin(y)**2)
sin(y)**2
trigsimp(sin(x)**2*y + cos(x)**2*y)
y This is not working (but it should) so I am leaving the issue open.
trigsimp((cos(x+y)).expand(trig=True))
-sin(x)*sin(y) + cos(x)*cos(y)
trigsimp(_)
-sin(x)*sin(y) + cos(x)*cos(y) -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sympy-issues?hl=en.
