Recent content by Faken

Ok maybe not 3d space.

Hello everyone, I have 2 components of a gradient, for example, the dz/dx and the dz/dy, I want to find the overall gradient it forms, how would I do that? Is it simply by combining the two gradients like this: overall gradient = ((dz/dx)^2 + (dz/dy)^2)^(1/2) I don't need the direction, I...

Wow, thank you everyone! You gave me a very nice solid answer. Your right, I apparently wasn't thinking when i said that the numerator could no be zero, it obviously can.

In a linear system of equations where there is a solution, is it possible for Cramer's rule to fail? By fail, as in end up with a zero determinate on either the top or the bottom or both.