Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 2234 by [email protected]: Incorrect integration of exp(...) and
E**(...) vs N(E)**(...)
http://code.google.com/p/sympy/issues/detail?id=2234
IDLE 2.6.5
from sympy import *
x=Symbol('x')
N(integrate(sin(pi*x)*exp(-I*2*pi*x),(x,-.5,.5)))
.0e-148 + .0e+2*I
N(integrate(sin(pi*x)*E**(-I*2*pi*x),(x,-.5,.5)))
.0e-148 + .0e+2*I
N(integrate(sin(pi*x)*N(E)**(-I*2*pi*x),(x,-.5,.5)))
.0e-109 - 0.424413181578388*I
The last answer is correct and agrees with other methods, including
Mathematica (run Integrate[sin(pi*x)*exp[-i*2*pi*x],{x,-.5,.5}] through
WolframAlpha.com).
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