Updates:
Status: Started
Owner: asmeurer
Labels: -NeedsBetterPatch
Comment #11 on issue 1704 by asmeurer: [PATCH] Integration of certain
composite functions fails
http://code.google.com/p/sympy/issues/detail?id=1704
This has already been fixed, apparently by this commit:
bf32cd36acaa6c1c3ba1dc8f16144d65ec86c708 is the first bad commit
commit bf32cd36acaa6c1c3ba1dc8f16144d65ec86c708
Author: Priit Laes <pl...@plaes.org>
Date: Fri Nov 27 23:07:36 2009 +0200
Use polynomial canceling for simplifying.
This fixes various errors for inverse trig. functions containing
fractions
in their arguments.
Added tests for asin/acos and asinh case. Other inverse trig. hyperbolic
functions (acosh^1, acoth^-1, atanh^-1) need to wait until Mul.subs()
has
been improved a bit.
Thanks for Mateusz Paprocki and Aaron Meurer for ideas and debugging.
Signed-off-by: Priit Laes <pl...@plaes.org>
Signed-off-by: Vinzent Steinberg <vinzent.steinb...@gmail.com>
Signed-off-by: Mateusz Paprocki <matt...@gmail.com>
:040000 040000 c9d142972e6e79dacbe0469c90ad164dfab73425
1c2dc0ad2a892d4f68a64b9f0e7f29f6637cb90f M sympy
In [1]: var('x_max a'); integrate(y / pi * exp(-(x_max - x) / cos(a)), x)
Out[1]: (x_max, a)
Out[1]:
x -x_max
────── ──────
cos(a) cos(a)
y⋅cos(a)⋅ℯ ⋅ℯ
────────────────────────
π
It remains to add a test, which I will do in my current WIP branch.
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