Sharp EL-9900 - Manual (Page 204)

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Chapter 12
The SOLVER Feature
The SOLVER feature is one of the calculator’s most powerful and distinctive features,
and helps you solve math problems with various analysis methods.
Using this feature, problems from linear equations to complex formulas can be solved
with ease.
To access the SOLVER feature, press @ '; to exit, press #.
Note: • The SOLVER feature is not available in the Basic mode.
• The SOLVER feature shares variables with other calculator
features. These variables can be called up or defined within the
SOLVER feature OR any other features. For example, solving/
defining a value of “A” within the SOLVER feature will also
change the global value of “A”.
1. Three Analysis Methods: Equation, Newton,
and Graphic
To switch your preferred analysis style:
1. Go into the SOLVER menu by pressing @ ' WITHIN
the SOLVER window. The SOLVER menu appears with four
menu items.
2. While A METHOD item is
selected on the left, select
your preferred method by
pressing 1, 2, or
3.
The Equation method is useful when there is only one unknown
variable. For example, if you know the values of B and C for an
expression “A + B = C”, use the Equation method.
Example
Determine the value of “C” in “A = 2B 2 + 4C”, when A = 4, and
B = 5.
Equation
method