6.2. Two-Dimensional Plots

To draw a 2-D plot in MATLAB, the plot command is used. The syntax is given as follows:

plot(x, y)

where

x is a vector containing the x-coordinates of the plot and

y is a vector containing the y-coordinates of the plot.

When executed, the command will create a plot in the MATLAB figure window with data in vector x taken along x-axis and data in vector y along y-axis.

In case figure window already exits, it clears the current figure window and draws a new plot.

Example 6.1.

Plot the curve given by equation y = x2 where x varies from 0 to 10.

Solution:

The program to plot the curve given by equation y = x2 is given as follows:

x = 0 : 1 : 10;       %Statement 1
y = x .^ 2;           %Statement 2
plot(x, y);           %Statement 3

Statement ...

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