Using mathematical functions 181
Physical constants
There are 29 physical constants you can use in
calculations. These constants are grouped into the
categories chemistry, physics and quantum mechanics. A
list of all these constants can be found in Physical
Constants in the Reference Information chapter.
To access the menu of physical constants:
1. P r e s s
b.
2. Press .
3. Use the arrow keys to navigate through the options.
4. While in the Physical Constants menu, pressing
toggles between showing the entire value of the
constant and a description of the constant in the help
line. To attach units to the constant when you paste it
into the command line, keep active when you
press ; to paste just the value without units, de-
activate before pressing .
5. To use the selected constant in a calculation, press
. The constant appears at the position of the
cursor on the edit line.
Example:
Suppose you want to know the potential energy of a mass
of 5 units according to the equation .
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