Question: Obtain the surface and contour plots for the function z = (x - y 2 )(x - 3y 2 ). This surface has a singular

Obtain the surface and contour plots for the function z = (x - y²)(x - 3y²). This surface has a singular point at x = y = 0, where the surface has zero slope, but this point does not correspond to either a minimum or a maximum. What type of contour lines corresponds to a singular point?

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