Learning Guide Learning Guide

4.2 Graphing in Three Dimensions • 115Figure 4.2 The Spherical Coordinate Systemzφrx0θyMaple can plot a function in spherical coordinates by using thesphereplot command in the plots package. To access the commandwith its short name, use with(plots). To avoid listing all the commandsin the plots package, use a colon, rather than a semicolon.> with(plots):Use the sphereplot command in the following manner.sphereplot( r-expr, theta=range, phi=range )The graph of r = (4/3) θ sin φ looks like this:> sphereplot( (4/3)^theta * sin(phi),> theta=-1..2*Pi, phi=0..Pi );