Sharp EL-5230 User Manual download pdf (Page 55)

Solving an equation

Example

Tr y finding the variables in the equation below.

××

1. Press b 0 to select the NORMAL mode.

2. Press ; A k ; B ;

= ; C k ; D.

•You must enter the whole equation.

3. Press I 5.

• The calculator automatically calls the

display for entering variables and

displays the variables in alphabetical

order.

•

indicates that there are more

variables.

• If a variable already has a value, the calculator displays that value

automatically.

4. Press 10 e.

• Enters a value for known variable A.

• The cursor moves onto the next

variable.

5. Press 5 e.

• Enters a value for known variable B.

6. Press 2.5 e.

• Enters a value for known variable C.

• The cursor moves onto the next

variable.

indicates that this is the last

variable.

7. Press @ h.

• After showing the ‘calculating!’ display,

the calculator finds the value for the

unknown variable that was indicated

by the cursor.

Values of the right-hand side

of the equation

Values of the left-hand side

of the equation

D= 20.

R¬ 50.

L¬ 50.

NORMAL MODE

A˚B=C˚D_

A˚B=C˚D

A=z 0.

A˚B=C˚D

D=z 0.

Chapter 3: Scientific Calculations

A˚B=C˚D

B=z 0.

A˚B=C˚D

C=z 0.

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Sharp EL-5230 User Manual Page 55

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