Multi-variable Definition and 52 Threads

How do I find the Critical points of a two-variable function using MATlab? I have a problem, I cannot seem to find the critical points of a two-variable function for the life of me! The funtion f(x,y) = 10x^2y - 5x^2 - 4y^2 - x^4 -2y^4 is supposed to have six potential critical points. I...

Hi, I have an example from my prof. He said, in evaluating limits, we can use L1 (along x-axis), L2 (along y-axis), and L3 (y = kx). After that, if the limits come to the same finite number, then the limit might exist. Here's the example. \lim_{\substack{x\rightarrow 0\\y\rightarrow...