Sharp EL-5250, EL-5230 operation manual Error, Important notes, Calculation, A˚B=C˚D

Chapter 3: Scientific Calculations

•The value shown on the display for the unknown variable does not have to be set to 0 to solve the equation.

•The answer is displayed on the top line and the values of the left- hand and right-hand sides of the equation appear below.

8.Press e.

•Returns you to the display for entering variables.

9. Press d8 e.

•Substitutes the value 8 for B.

•The cursor moves onto the next variable C.

10. Press @h.

•You can find any unknowns in the same equation.

A˚B=C˚D
A=z	10.
A˚B=C˚D
C=z	2.5
C=		4.
R¬	80.
L¬	80.

Important notes

There are several important points to remember when you use the solver function.

•To cancel calculation, press j when ‘calculating!’ is displayed.

•Before entering the equation, the appropriate angular unit must be selected.

•The calculator uses Newton’s method to solve equations. Due to this, there may be some equations that it fails to solve even though they are in fact solvable. (See page 123.)

•The calculator stops calculating when the values it has obtained for the left and right sides of the equation become very close. Thus in certain cases the solution it gives may not be the real answer. (See page 122.)

•In certain cases, the calculator may abort a calculation and display the

message shown on the right. (See page
121.)	- ERROR 02	-
	CALCULATION

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