I need to find the function f(x,y) which could describe the surface below. Could you help me?
Try adjusting constants in:
$$ z= y\, x^2 (x^2 - 1) , (-1< x <1),\, (-1< y <1 ) $$
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Try adjusting constants in:
$$ z= y\, x^2 (x^2 - 1) , (-1< x <1),\, (-1< y <1 ) $$