Feature to plot contour of multivariate functions#134

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povinsahu1909 wants to merge 2 commits intosympy:masterfrom povinsahu1909:contour-plot

+86-28

Commits on Mar 16, 2020

included contour plot support for multivariate functions
povinsahu1909
committed

Commits on Mar 19, 2020

improve to plot contour of multivariate functions
povinsahu1909
committed