HP 39gs User Manual page 178

13-26
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.
2
E = mc
.
.
Using mathematical functions