Comment #8 on issue 3581 by v9jo...@gmail.com: Implement arg.rewrite(atan2)
http://code.google.com/p/sympy/issues/detail?id=3581
Hi,
If this issue hasn't been resolved already, would it be alright if I took
it up? I might be working on another issue in the rewrite functions in
trigonometry (Issue No. 3773) and I could fix both together.
@Khagesh: exp(1) evaluates to E which is why exp(1).rewrite(sin) also
evaluates to E. The exp function handles numbers like 1, 0, inf etc.
separately. This means that while exp(2), exp(3) etc... would give you a
sinh and cosh function on rewriting, those special numbers would just give
you the corresponding values, E for 1 , 1 for 0, +Inf for +Inf and 0 for
-Inf.
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