MATLAB Function Reference (Volume 2: Graphics)

ezsurfcArray multiplication, division, and exponentiation are always implied in theexpression you pass to ezsurfc. For example, the MATLAB syntax for asurface/contour plot of the experssion,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.ExamplesCreate a surface/contour plot of the expression,f( x,y)y= ---------------------------1 + x 2 + y 2over the domain -5 < x < 5, -2*pi < y < 2*pi, with a computational grid of size35-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 (thispicture uses a view of azimuth = -65.5 and elevation = 26)2-154