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Videos, worksheets, solutions, and activities to help PreCalculus students learn about the greatest integer function. It is also called the "step function" or "floor function".

The Greatest Integer Function :

One of the most commonly used step functions is the greatest integer function. The greatest integer function has it's own notation and tells us to round whatever decimal number it is given down to the nearest integer, or the greatest integer that is less than the number. The graph of the greatest integer function resembles an ascending staircase.

How to evaluate the greatest integer function.

Three quick graphs involving the greatest integer function.

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