Let u(x, y) be a twice differentiable function. Show that in polar coordinates the Laplacian of u takes the form...
.
Should be an easy Q but i cant remember how to do the second derivative.
= .
But then how do you take the second derivative?
Let u(x, y) be a twice differentiable function. Show that in polar coordinates the Laplacian of u takes the form...
.
Should be an easy Q but i cant remember how to do the second derivative.
= .
But then how do you take the second derivative?