User Portlet
| Discussions |
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| I'm trying to plot three functions involving oscillatory integrals. I also implemented these functions in Python using SciPy, and the plots there look similar for all three functions. However, in Mathematica, the curves differ. What is the reason?... |
| I am working with an infinite-dimensional density matrix in Mathematica, where the basis states are: ∣000n⟩, ∣100n⟩, ∣010n⟩, ∣001n⟩, ∣110n⟩, ∣101n⟩, ∣000(n+1)⟩, ∣100(n+1)⟩ The density matrix is given by: X = Sum[ (tanh(r)^(2n) /... |
| I am working on a project that involves a high-dimensional matrix, pTA, of size 8*(p+2). I attempted to compute the sum of its negative eigenvalues using a supercomputer with 128 GB of RAM. For p=300, the computation took around 4 hours, and the... |
| I have written a heavy program that my computer is unable to process. Therefore, I decided to use both processor cores for data processing. My code is as follows: (**Note that to test the program, set the value of p to a smaller number, such as 5.**)... |
| I am working on a code that involves infinite integrals and infinite summations. When running it in Mathematica 11, the computation takes an extremely long time, and it seems the software is unable to provide an answer. I waited for over two hours... |
| I'm working on a Mathematica code that involves nested NIntegrate and NSum with oscillatory integrands, but I'm encountering several non-numeric evaluation errors. The relevant part of the code is below: &[Wolfram Notebook][1] [1]:... |
| no errors now but the result was as follows: {} actually no answer |
| it Converges for 0 |
| im sorry to say it doesnt work. it gives these errors: FunctionDomain::nmet: Unable to find the domain with the available methods. FunctionDomain::ivar: 0.633070356251368` is not a valid variable. FunctionDomain::ivar: 0.633070356251368`... |
| i doesn't solve the problem. |