"Contour not rendered for non-finite ZData" warning, working fine on Mathematica?

Hello,

I am trying to exectute this script:

[x,y] = meshgrid(-5:0.25:5);
z = (x.^2 + y.^4)/sqrt(4.*x.^2 + 4.*y.^2);
contour3(z)

It's working just fine in wolfram mathematica:

h := (x^2 + y^4)/Sqrt[4*x^2 + 4*y^2]
Plot3D[g, {x, -5, 5}, {y, -5, 5}]

How can I get it to work?

Answer 1

[KSSV]

[x,y] = meshgrid(-5:0.25:5);
z = (x.^2 + y.^4)./sqrt(4.*x.^2 + 4.*y.^2);
contour3(x,y,z)

YOu forgot to put ./ (element by element division) between numerator and denominator.

[am]

Thank you!