BV

Differentierbarhet

>

restart;

>	with(linalg):with(plots):

>	f:=(x^2+y^2)^(2/3);g:=(x^2+y^2)^(1/2);

>	plot3d({g,0},x=-2..2,y=-2..2);

g(x,y)=(x² + y²)^1/2 , icke-differentierbara fallet.

>	plot3d({f,0},x=-1..1,y=-1..1);

f(x,y)=(x² + y²)^2/3 , differentierbara fallet.

>