Sharp EL-5230, Operation Manual

Page: 54 / 132

52
Solver Function
This function enables you to find any variable in an equation.
Entering and solving an equation
The solver function is used as follows.
1. Press
b
0
to enter the NORMAL mode.
2. Enter both sides of an equation, using ‘=’ and variable names.
3. Press
I 5
.
4. Enter the value of the known variables.
5. Move the cursor (display) to the unknown variables.
6. Press
@ h
.
• The solver function can find any variable
anywhere in an equation. It can even find
variables that appear several times in an
equation.
• You can use both global and local
variables in your equation. (See page 58.)
• Using the solver function will cause variables memory to be overwritten
with new values.
• To exit the solver function, press
j
.
Changing the value of variables and editing an equation
When you are in the solution display, press
e
to return to the display for
entering values of variables, then return to the equation display in the
NORMAL mode by pressing
j
.
→ →
e j
Solution display Use
d u
to
move between
variables.
NORMAL MODE
0.
TŒ=(4π©GM)R_
Equation entering display
R= 1.127251652
R¬ 9.
L¬ 9. TŒ=(4π©GM)R
G=z 1.5
NORMAL MODE
0.
TŒ=(4π©GM)R_
Chapter 3: Scientific Calculations