Partial Derivative

Author

Eric W. Weisstein
April 15, 2004

This notebook downloaded from http://mathworld.wolfram.com/notebooks/Calculus/PartialDerivative.nb.

For more information, see Eric's MathWorld entry http://mathworld.wolfram.com/PartialDerivative.html.

©2005 Wolfram Research, Inc. except for portions noted otherwise

Mixed Partials Are Not Equal

f[0,0]:=0
f[x_,y_]:=x y(x^2-y^2)/(x^2+y^2)

LiveGraphics3D

<<Utilities`LiveGraphics3D`

WriteLiveForm["partial.m",
	Show[Plot3D[f[x,y],{x,-2,2},{y,-2,2},Boxed->False,Axes->False],opts]]