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The plot of the function f(x,y)=x/(x^2+y^2) The point of interest in yellow The plot of the function f(x,y)=x/(x^2+y^2) The point of interest in yellow |
The plot of the function f(x,y)=x/(x^2+y^2) The point of interest in yellow The tangent vector of greatest increase in orange The plot of the function f(x,y)=x/(x^2+y^2) The point of interest in yellow The tangent vector of greatest increase in orange |
Tangent plane to ellipsoid in magenta Normal line to ellipsoid in orange Tangent plane to ellipsoid in magenta Normal line to ellipsoid in orange |