Apple Newton Works Graphing Calculator - Manual (Page 21)

Using your function
To use your function, do one of the following:
m Type the function name on the keyboard, or
1 Tap Tools, and then tap Functions.
2 Tap the diamond u at the top of the slip, then tap User Functions.
3 Tap the function that you want to use in your calculation, then tap Insert.
The caret is placed between the parentheses.
4 Enter the arguments, if any, for the function.
Using constants
The graphing calculator has four constants defined:
m e
m pi ()
m infinity
m negative infinity
Tip: Pressing Option-P is a shortcut for entering the pi symbol ().
Using Functions and Variables 21