Article / Updated 03-26-2016
Many functions can be graphed by accessing commands commonly used in the TI-Nspire Calculator application. The greatest integer function, y = int(x), is one such graph, which you create by following these steps:
Position the cursor next to the first available function line.
Open the Catalog.
If necessary, press [1] to activate the first category containing the alphabetical listing of all commands, functions, and symbols.