Status: Valid
Owner: ----
Labels: Type-Defect Priority-Medium integration
New issue 3328 by [email protected]: Integrating simple DiracDelta
http://code.google.com/p/sympy/issues/detail?id=3328
I want to compute the following integral
∞ 1 1
⌠ ⌠ ⌠
⎮ ⎮ ⎮ DiracDelta(-z + x - y) dy dx dz
⌡ ⌡ ⌡
0 0 0
integrate(integrate(integrate(DiracDelta(-z + x - y), (y, 0, 1)), (x,
0 ,1)), (z, 0, oo))
which becomes
integrate(integrate(
-Heaviside(x - z) + Heaviside(x - z - 1)
, (x, 0 ,1)), (z, 0, oo))
the next integral involves lots of G functions. The final integral fails.
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