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custom coordinate systems in mathematica Help!
Hi!, HELP! I've asked this question a couple of times but never received an answer. I have a new coordinate system to deal with. x=f(u, v,w) y=g(u,v,w) z=h(u,v,w) (x,y,z) are Cartesian and it's inverse is known. How can I program this in Mathematica and compute the gradient, curl, divergence, laplacian and other operators in this coordinate system ????