Yeah, the * has to be replaced with @. However, the script is producing tons of false positibe results for me.

I am trying to figure out if a point is inside an object. It's throwing the following errors - for the first line inside the function ""Element-wise multiplication: not supported between 'Matrix' and 'Vector' types""

It's really slow. I have 2400 cubes to check if each of them intersects with the cone or not. Just run the script and it seems like - it will take ages to complete. Do you have any suggestions on a faster method?

@CodeManX Is that possible for you to update the script for 2.8 or 2.9. I made adjustments in multiple places but still getting several errors.

@JachymMichal I need to extract part of an object that falls inside than camera view. I will do that using the Boolean modifier in Blender 2.76 as 2.8's boolean can't do that. It's a part of a Ph.D. research project (in the field of Ag. Engg.).

@susu I have made some edits as I have to have faces/sides converted into planes.