Plots Using Matlab

Basic Plotting

Matlab provides a number of options for plotting viz. 2-D plotting, 3-D plotting, Line plots, polar plots, charts, etc. Discussion of most of the plots will be discussed step by step.

Let us start discussing with the 2-D plot

>> t=0:0.01:1;

>> a= sin(2*pi*t);

>> plot(t,a)

Use of ‘linspace’ function

In some applications, we require the plot that serves our purpose only i.e. only a required range of the output from the function. The following example gives the idea about it.

>> x = linspace(-2*pi,2*pi);

>> a= sin(x);

>> plot(x,a)

Plotting multiple plots in one plot

To use this feature of the Matlab, the same plotting function of Matlab is used, which is used for plotting one plot. But the only difference is that you need to add the parameters of the second plot append to the first plot parameter. See the example below:

>> t=0:0.01:1;

>> y1 = sin(2*pi*t);

>> y2 = cos(2*pi*t);

>> plot(t,y1,t,y2)

Hope to see you in next tutorial….!!!!