# Documentation

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## Create Figure with Multiple Graphs Using Subplots

This example shows how to create a figure containing multiple graphs using the `subplot` function. The syntax, `subplot(m,n,p)`, divides the figure into an m-by-n grid with an axes in the pth grid location. The grids are numbered along each row.

Create Subplots and Add Subplot Titles

Use `subplot` to create a figure containing a 2-by-2 grid of graphs. Plot a sine wave in the first subplot.

```x = linspace(-5,5); % define x y1 = sin(x); % define y1 figure % create new figure subplot(2,2,1) % first subplot plot(x,y1) title('First subplot') ```

Plot another sine wave in the second subplot.

```y2 = sin(2*x); % define y2 subplot(2,2,2) % second subplot plot(x,y2) title('Second subplot') ```

Plot two more sine waves in the third and fourth subplots.

```y3 = sin(4*x); % define y3 y4 = sin(6*x); % define y4 subplot(2,2,3) % third subplot plot(x,y3) title('Third subplot') subplot(2,2,4) % fourth subplot plot(x,y4) title('Fourth subplot') ```

Add subplot labels using the `xlabel` and `ylabel` functions. By default, `xlabel` and `ylabel` label the current axes. The current axes is typically the last axes created or clicked with the mouse. Reissuing the command, `subplot(m,n,p)`, makes the pth subplot the current axes.

Make the third subplot the current axes. Then, label its x-axis and y-axis.

```subplot(2,2,3) xlabel('x-axis') ylabel('y-axis') ```

The figure contains four axes with a sine wave plotted in each axes.