Sharp EL-9650, Руководство по эксплуатации, Страница: 223 / 373

213
SOLVER FUNCTION
2. Selecting the Solution Analysis Method
• The calculator has three kinds of analysis methods that may be used to find the
solution. They are equation, Newton, and graph methods.
• When the solution can be found by a simple algebraic equation, the equation
method is normally used. The calculator automatically selects this method in the
default setting (unless otherwise specified).
• If the solution cannot be found by the equation method, it automatically switches to
the Newton method.
• To select the analysis method:
Press
Ï
to enter the solver mode and press
Ï
again. The following
menu will appear on the screen.
4. To find the solution:
Press
≤
to move the cursor to “C=” (after
inputting numerical values, the cursor pointer is at
“D”).
Press
Ï
and to display the answer screen
shown to the right.
* After the solution has been found, press
¬
to return to the variable input screen. On this
screen, you may change the numeric values in the variables and select another unknown
variable to find the solution again.
* To edit the equation, press
¬
on the variable input screen to change the screen to the
equation input screen, allowing you to correct or edit the previously input equation.
Analysis method setting
Recall stored solver equation
Store solver equation
Change solver equation name
The following analysis methods are built into the menu, [A METHOD].
[1 Equation] : Solution is directly found by the equation method.
[2 Newton] : Solution is found by the Newton method.
[3 Graphic] : Solution is found by the graph method.
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EL-9650-(09)EN (211-220) 8/1/00, 9:14 AM 213