Solving A Literal Equation Using The Graphic Method (Volume Of A Cylinder) - Sharp EL9600C - Graphing Calculator Handbook

Solving a Literal Equation Using the Graphic Method
Solver mode is used to solve one unknown variable by inputting known variables. There
are three methods: Equation, Newton's, and Graphic. The Equation method is used when
an exact solution can be found by simple substitution. Newton's method implements an
iterative approach to find the solution once a starting point is given. When a starting point
is unavailable or multiple solutions are expected, use the Graphic method. This method
plots the left and right sides of the equation and then locates the intersection(s).
Example
Use the Graphic method to find the radius of a cylinder giving the range of the unknown
variable.
The formula : V = r
1.
Find the radius of a cylinder with a volume of 30in
the Graphic method.
2.
Save the formula as "V CYL".
3.
Find the radius of a cylinder with a volume of 200in
using the saved formula.
Before
There may be differences in the results of calculations and graph plotting depending on the setting.
Start
Return all settings to the default value or to delete all data.
As Solver feature is only available on the EL-9600, this section does not apply to the EL-9400.
Step & Key Operation
*Use either pen touch or cursor to operate.
1
1
Access the Solver feature.
-
2nd F SOLVER
1
2
Select the Graphic method for
-
solving.
A
2nd F SOLVER
*
3
*
1
3
Enter the formula V = r
-
=
V
ALPHA ALPHA
x 2
R H
ALPHA
1
4
Enter the values: V = 30, H = 10.
-
Solve for the radius (R).
3 0
ENTER ENTER
0
ENTER
*
2
( V = volume
h
2
h.
2nd F ALPHA
1
* *
2nd F EXE
EL-9600 Graphing Calculator
r = radius h = heiqht)
3 and a height of 10in, using
3
and a height of 15 in,
Display
This screen will appear a few
seconds after "SOLVER" is dis-
played.
(Volume of a Cylinder)
Notes
3-2