Evaluate Option

The evaluate option is used to evaluate a selected function for a particular value of x. While viewing a graph, press .

"Eval x =" appears at the bottom of the screen.

Type a value of x. For x = 1.5, type "1.5" and the corresponding value of y will be displayed.

The "1" in the upper right hand corner indicates that the first function is being evaluated. The cursor on the graph indicates the location of the point (x,y).

Note: The typed value of x must be between the xmin and xmax values entered in the window.

To evaluate function "2", press .

To evaluate these functions at x = 1.5 from the home screen instead of the graph screen, press


This returns a list of the y values of all selected functions.