Because is a constant in the regions where is or , here the partial derivatives are both equal to 0. Where is the partial derivatives don't exist...
Kind regards
Hi there. Well, I've got some doubts on the partial derivatives for the next function:
Where sg is the sign function.
So, what I got is:
How should I get the partial derivatives? I'm sure that for the zero I must use the definition. But in the other cases should I?
Bye, and thanks.