u/Extension-Branch541

Most functions I can imagine a graph (ish how it should be atleas) for example f(x,y)=1/(1*x**2*y**2), f(x,y)=cos(sqrt(x**2+y**2)), etc. but how can I match less recognisable ones (cos or sun waves are easy to spot), like (x**2-y**2)**2?

Any tips welcome🥰