Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 4058 by [email protected]: correct integrate() result in
python2.7.4, but wrong in python3.3
http://code.google.com/p/sympy/issues/detail?id=4058
Wester test_V12() in test_wester.py
Tested in Ubuntu 13.04.
Result is correct in python2.7.4:
Python 2.7.4 (default, Sep 26 2013, 03:20:56)
[GCC 4.7.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
from sympy import *
x = symbols('x')
integrate(1/(5 + 3*cos(x) + 4*sin(x)), x)
-1/(tan(x/2) + 2)
But incorrect on python3.3.1:
Python 3.3.1 (default, Sep 25 2013, 19:30:50)
[GCC 4.7.3] on linux
Type "help", "copyright", "credits" or "license" for more information.
from sympy import *
x = symbols('x')
integrate(1/(5 + 3*cos(x) + 4*sin(x)), x)
tan(x/2)/(2*tan(x/2) + 4)
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