When we have a simple one variable function $y = f(x)$, $f(x)$ gives the height of function/curve at an arbitrary point $x$, but if we have a multivariate function $u = f(x,y)$, what does it give us?
2026-03-24 20:30:27.1774384227
A question regarding multi variate functions
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1
Why not visiting Wolfram Alpha and playing around with different functions $u(x,y)$?