Updates:
Status: Valid
Cc: [email protected] [email protected]
Labels: Polynomial Simplify Integration
Comment #1 on issue 3952 by [email protected]: Sympy cannot compute the
integral of sqrt(tan(x))
http://code.google.com/p/sympy/issues/detail?id=3952
There are two issues here
- One is the integral. I wouldn't hold your breath on it. Integrals of
algebraic combinations of transcendental functions are the hardest part of
the Risch algorithm. Maybe some heuristic will pick it up sooner, but given
the form of the answer, I doubt it. And anyway, we are still working on the
algorithms to integrate non-algebraic combinations of trigonometric
functions in the Risch algorithm (that's a GSoC project this summer).
- The simplification. To get that, we need better simplification of
algebraic expressions. My hope is that Katja's GSoC work this summer will
allow this.
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