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Product Description
The graph of the function z=f(x,y)=x^2*y/(x^4+y^2). This function is not continuous at (0,0) but has the property that the limit of f(x,y) as (x,y) goes to (0,0) taken along a line Ax+By=0 exists and is zero. However, when we take the limit along y=x^2 we obtain 1/2. The limit along y=-x^2 is also shown.
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