How to take curl of numeric vector fields?

Hello,

I have magnetic field vectors from FDTD simulations at different sets of (x,y) points. The H fields have numerical values at different (x,y) because I have extracted the data from simulation results. For example, the H fields are (101*101) dimensional matrices in Matlab. How can I calculate curl of H in this case?

And then, I'd like to get (curl H_x : x components of curl of H) and (curl H_y : y components of curl of H). How can I do this?

Thank you.

[darova]

What is "curl"? How does it look like?

Answer 1

[Jacob Wood]

Matlab kindly includes a builtin curl() function, you can find information and a sample implementation here: https://mathworks.com/help/matlab/ref/curl.html

[darova]

Why don't you use it (curl() function)?