III. Working With A Graph

D. EVAL

The EVAL option shows the value of the function on the graph screen. You can enter any value of x within the window range. You can enter a value and then enter more values as you need. However, if you select a value not in the [xMin, xMax] interval, you will get an error message.

Enter a function.
Graph.
Enter a value.
Value is shown.
Value not in
[xMin,xMax].

This menu option is useful if you want to see the value and the graph at the same time. If all you need is to evaluate the graph at some values, then use TABLE.

 

A. y(x)
B. MATH
C. FORMAT
D. EVAL
E. TABLE
F. TRACE
G. ZOOM