Matvec Users’ Guide

8.3. EXAMPLES 49
Figure 8.1: The curve of the cumulative distribution function of N(0,1)
1
The curve of the cumulative distribution function of N(0,1)
y
0.8
0.6
0.4
0.2
0
-10 -5 0 5 10
values of X distributed as N(0,1)
emtex, mf, pbm, x11, etc.
8.2.6 open
p.open() open (re-open) a shell for external plotting program
8.2.7 close
p.close() close the graph window on X11 terminal. Note that after closing the graph window, all settings
such as title,labels are also cleared.
8.3 Examples
8.3.1 Example 1
Try the following example
> N = StatDist("Normal",0,1);
> x = -10:10;
> y = N.cdf(x);
> p = Plotter();
> p.set("xlabel ’values of X distributed as N(0,1)’")
> p.plot(x,y);
The picture from the above Matvec script is shown in Fig. 8.1:
8.3.2 Example 2
> p = Plotter();
> p.plot3D("sin(x)+cos(y)");
> p.save("myfig.ps");