Sharp EL-9900 Benutzerhandbuch

1. Enter SOLVER by pressing 

@ '. The word SOLVER

will flash on the screen, indicating that you are now in the

SOLVER feature mode.

2. Enter the equation “A = 2B

2

+

 4C”.

Press 

A A A =

2 

A B y + 4

A C.

3. Press 

E.

The screen above right appears, indicating that there are 3

variables to be assigned.

If values were assigned to those variables prior to this operation,

then the previously set values will be shown here. For example,

“C = 57” may show up in this

window; this simply indicates

the value of “C” was previously

set to “57”.

4. Enter “4” for variable “A”, and

“5” for variable “B”.

Press 4 

E 5 E.

5. When the two known values have been specified, make sure

that the cursor is at the value yet to be determined (in this

case, the value of “C”).

6. Press 

@ h to

execute the SOLVER. The

value of “C” will be obtained.

* After the solution has been

found, press 

C to return

to the variable input screen. You may change the numeric

values for the variables and select another unknown variable to

solve.

* To edit the equation, press 

C on the variable input screen.

The equation input screen allows you to correct or edit the

previously input equation.