Sharp EL-5230 User Manual
53
Solving an equation
Example
Try finding the variables in the equation below.
A B
C
D
×
×
=
1.
Press b 0 to select the NORMAL mode.
2.
Press ; A k ; B ;
= ; C k ; D.
= ; 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.
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
• 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
• The cursor moves onto the next
variable. indicates that this is the last
variable.
variable.
7.
Press @ h.
• After showing the ‘calculating!’ display,
the calculator finds the value for the
unknown variable that was indicated
by the cursor.
unknown variable that was indicated
by the cursor.
Values of the right-hand side
of the equation
of the equation
Values of the left-hand side
of the equation
of the equation
D= 20.
R¬ 50.
R¬ 50.
L¬ 50.
NORMAL MODE
0.
0.
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.