Displaying a Grid behind Graph

You can display a grid with the graph by using the set grid command. To see if grids are being used, type show grid. For example, if you typed the following,

set grid
plot sin(x)

You would get the following:

Grids can be turned on for 3d plots as well. They often improve the 3D perspective.

set grid
splot x**2 + y**2

To turn the grid feature off, type set nogrid.

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