HP 39gs - Manual (Page 178)

13-26 Using mathematical functions
Example
Suppose you want to know the potential energy of a mass
of 5 units according to the equation
.
1. Enter 5
2. Press and then press .
3. Select light s...from the Physics menu.
4. Press . The menu closes and the value of the
selected constant is copied to the edit line.
5. Complete the equation as you would normally and
press to get the result.
E mc
2
=
HP 39gs English.book Page 26 Wednesday, December 7, 2005 11:24 PM