In particular, the variable omega seems to be crucial here. It’s probably an array, and you haven’t defined it. The fact that abs2. is called with a dot, indicates that whoever wrote the code expects it to be an array.
In particular, the variable omega seems to be crucial here. It’s probably an array, and you haven’t defined it. The fact that abs2. is called with a dot, indicates that whoever wrote the code expects it to be an array.