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[edit] Partial Derivativasdfadsfa
For u(x,y) where x = x(s,t), y = y(s,t):
This is why it's called calc-u-lose. D:
[edit] Phantasm Stage: 15.5.48
Let u = f(x,y), x = escost, y = essint.
Show that .
Q.E.D.
Okay, I was wrong. That was why we call it calc-u-lose D: