Yes, this is a defect. I created in fact a Issue this week for it: https://code.google.com/p/sympy/issues/detail?id=4079
On Wednesday, October 30, 2013 12:03:32 PM UTC+1, Harsh Gupta wrote: > > >>> from sympy.integrals import transforms > >>> FT = fourier_transform > >>> from sympy.abc import x, k > >>> FT(1,x,k) > 0 > > Sympy evaluates the fourier transform of 1 as 0 though it is > dirac_delta(k). > Similarly sympy evaluates the fourier transform of powers of x as 0 as > well. > > http://mathworld.wolfram.com/FourierTransform1.html > > This might be arising because fourier transform of a 1 is not evaluated by > direct integration > rather it is evaluated using a form of the generalized unit function. > > -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. For more options, visit https://groups.google.com/groups/opt_out.
