All Questions
4 questions
7
votes
1
answer
308
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How to use Slater Type Orbitals as a basis functions in matrix method correctly?
This question is a continuation of my previous series of questions about basis functions.
I would like to find the minimum energy of Coulomb potential motion using matrix method.
$H=-\frac{1}{2}\Delta-...
- 1,893
1
vote
0
answers
77
views
How to use only real values in a notebook?
I am wondering how to make Mathematica only evaluate real numbers by creating an initialization line in the beginning of a notebook.
I would like to prevent the following:
complex trigonometric ...
- 1,765
2
votes
1
answer
158
views
How to speed up the calculation of a multi-dimension matrix involving symbolic integral?
The following program succeeds in getting matrix CC, but it takes time badly, especially in the case varNumber becomes larger just as the following ...
- 693
2
votes
1
answer
242
views
Force Mathematica to return numerical answer to (relatively) complicated differential function
I am trying to take the Laplacian of the LogDet of a 2x2 matrix that I call V\[ConjugateTranspose].V, and actually get a number out at the end. Why does Mathematica ...
- 597