Question

how to plot this function:
f(x,y)=√(x^2+y^2 )

Answer 1

Well, for one, I already suck at 2d drawing, so 3d drawing is going to be worse.
two, this should look familiar, ever done polar coordinates?

Answer 2

maybe think of it as the upper half of \(z^2=x^2+y^2\)

Answer 3

i too suck at 3d, but the wolf is pretty good at it
http://www.wolframalpha.com/input/?i=z%3Dsqrt%28x^2%2By^2%29

Answer 4

@satellite73
This should look like a cone, right?

Answer 5

yes

Answer 6

according to my notes the larger values of z are indicated by lighter colors in the contour plot