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-2 votes
1 answer
203 views

Mathematica doesn't evaluate an expression

I have such a code: ...
Cpp Nosavvier's user avatar
0 votes
1 answer
446 views

Numerical integration of a function with Dirac delta

I have a little question about the numerical integration of a function that includes a Dirac delta. I have the following function: ...
Lorenzo Bagnasacco's user avatar
3 votes
2 answers
228 views

Why can't I evaluate this integral and obtain a closed-form solution?

I have the following spherical density distribution: $\rho(x, z) = \frac{1}{\sqrt{x^2 + z^2}\left(1+\sqrt{x^2+z^2}\right)^2}$ which I have broken into a "line of sight" dimension $z$ and a &...
pretzlstyle's user avatar
2 votes
0 answers
204 views

Radial Mathieu functions, divergence problem

I am working on a project that requires the utilization of even Mathieu functions. This is the definition of my functions: Even Mathieu function: ...
Jorge Otalora's user avatar
0 votes
1 answer
122 views

Is there a way to compute the following definite integrals?

While evaluating the final wavefunction of a free spin-0 particle in one dimension in terms of Green's functions (propagators) and considering the initial conditions as Gaussian wavepackets, I arrived ...
JayanthJ's user avatar
20 votes
1 answer
1k views

Incorrect result from Integrate

Bug introduced in 8.0 and fixed in 10.0 I attempted to calculate the following integral: ...
DumpsterDoofus's user avatar
3 votes
0 answers
100 views

Why do I need to generalize/parameterize an integral sometimes to get a closed form result?

...
Vladimir Reshetnikov's user avatar