MATLAB Function Reference Volume 1: A - E - Bad Request

ezsurfc
2-536
sqrt(x.^2 + y.^2);
is written as:
ezsurfc('sqrt(x^2 + y^2)')
That is, x^2 is interpreted as x.^2 in the string you pass to ezsurfc.
Examples Create a surface/contour plot of the expression,
f( x, y)
y
1 x 2
y 2
= ---------------------------
+ +
over the domain -5 < x < 5, -2*pi < y < 2*pi, with a computational grid of size
35-by-35:
ezsurfc('y/(1 + x^2 + y^2)',[−5,5,−2*pi,2*pi],35)
Use the mouse to rotate the axes to better observe the contour lines (this
picture uses a view of azimuth = -65.5 and elevation = 26)
0.5
0
−0.5
5
0
y
y/(1 + x 2 + y 2 )
−5
−5
0
x
5