Solving An Equation - HP -22S Owner's Manual

Solving an Equation
When the unknown is not by itself on the left side of the equation,
use'
SOLVE I.
Pressing .,
SOLVE 1
displays a menu of the equation's
variables. Use the menu to select the unknown.
Example: Length of a Pendulum. What length must a pendulum
be to have a period of 8 seconds?
Keys: Display: Description:
.'SOLVEI
G L T
Menu for selecting the
unknown variable.
{L}
T?4.13128
Selects L, prompts for
T.
a I
INPUT
I
G?9.81367
Stores T, prompts for
G.
I
INPUT
1
L=15.8979
Retains previous value
of G, calculates L.·
• If the HP-22S displays SQRT
(NEG) instead of the answer, there was a negative value
stored in L before you started the calculation. Clear L (press 0
I
8TO
I
L) and start again.
1: Getting Started 31