## GRID Plot Grid Toggle Function

Section: Handle-Based Graphics

### Usage

Toggles the drawing of grid lines on the currently active plot. The general syntax for its use is

       grid(state)

where `state` is either

       grid('on')

to activate the grid lines, or

       grid('off')

to deactivate the grid lines. If you specify no argument then `grid` toggles the state of the grid:

       grid

You can also specify a particular axis to the grid command

       grid(handle,...)

where `handle` is the handle for a particular axis.

### Example

Here is a simple plot without grid lines.

    --> x = linspace(-1,1);
    --> y = cos(3*pi*x);
    --> plot(x,y,'r-');
    -->
    quit

Next, we activate the grid lines.

    --> plot(x,y,'r-');
    --> grid on
    -->
    quit