Examples:
MATLAB programming  Script Files 

In
this example, we are going to program the plotting of two concentric
circles and mark the center point with a black square. We use polar
coordinates in this case (for a variation).
We can open a new edit
window and type the following program (script). As already
mentioned, lines starting with a '%'
sign are comments,
and are ignored by MATLAB but are very useful to the viewer.

% The initial
instructions clear the screen, all
% of the
variables, and close any figure
clc;
clear;
close all
% CIRCLE  A
script file to draw a pretty circle
% We first
generate a 90element vector to be used as an angle
angle = linspace(0,
2*pi, 90);
% Then, we
create another 90element vector containing only value 2
r2 = linspace(2,
2, 90);
% Next, we
plot a red circle using the 'polar' function
polar(angle,
r2, 'ro')
title('One
more Circle')
% We avoid
deletion of the figure
hold on
% Now, we
create another 90element vector for radius 1
r1 = linspace(1,
1, 90);
polar(angle,
r1, 'bx')
% Finaly, we
mark the center with a black square
polar(0,
0, 'ks')
We save the script and run it with the 'run' icon (within
the Editor):
Or we can run it from the Command
Window by typing the name of the script.
We now get the concentric circles:
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