KdV (1D) using Freefem++

Hi,

Could anyone tell me where I can find some results programmed in Freefem++ for KdV in 1D?

Best regards.

Hello, I was also thinking about reproducing an instance of KdV, but the result was always wrong. My procedure is as follows. If it is convenient for you, please help me look at the reasons. Thank you.
KDVnew.edp (1.2 KB)