# Tag Info

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### Finite difference methods in cylindrical and spherical co-ordinate systems

There are basically two methods: You can disrectize the angular part via grid points, or you can discretize it via basis expansion. I will focus on spherical symmetry here, the cylindrical case is ...

### Calculation of the EFIE integral

A classic paper for evaluation of the integrals commonly present in computational electromagnetics (EM) is: D. R. Wilton, S. M. Rao, A. W. Glisson, D. H. Schaubert, O. M. Al-Bundak, and C. M. Butler, ...

### Minimum number of elements (mesh size) for electromagnetic simulation

The Maxwell system is a wave equation at heart, so your ansatz (the space where you seek solutions, the combination of your mesh and basis functions) must be able to faithfully represent waves. The ...
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### How to create a good preconditioner for a system of linear equations that is created with FEM applied on the time harming Maxwell eqution?

As a preamble, I would not expect that splitting $E$ into real/imaginary parts is very profitable. Normally, block 2x2 systems are motivated because one block of unknowns is "easier" to ...

### Is my differential equation solving code wrong?

The cross product with $H$ acts like a complex unit in the plane that has $H$ as normal, especially if you select $H$ to be a unit vector. Components parallel to $H$ remain unchanged. What you should ...

### Simulate electric fields due to surface charges in simple circuits using python

ANSYS Maxwell is a Finite Element solver for Electromagnetism. So, I assume that you are looking for a Finite Element package that has a Python interface (or is written in Python). There are some ...