Sharp EL9600C - Graphing Calculator Handbook page 18

Step & Key Operation
(When using EL-9600)
*Use either pen touch or cursor to operate.
1
5
Solve for the height and enter a
-
starting point of 1.
2nd F
*
1
6
Solve.
-
(
CL
2nd F EXE
2
Save this formula. Give the formula
the name "A TRAP".
C
2nd F SOLVER
*
A T R
SPACE
3
1
Recall the formula for calculating
-
the area of a trapezoid.
B
2nd F SOLVER
*
0 1
3
2
Enter the values:
-
A = 50, B = 8, C = 10.
5 0
ENTER ENTER
1 0
ENTER ENTER
3
3
Solve.
-
2nd F
*
ENTER 2nd F EXE
One very useful feature of the calculator is its ability to store and recall equations.
The solution from various values for known variables can be easily obtained by
recalling an equation which has been stored and giving values to the known
variables in the Solver mode. If a starting point is known, Newton's method is
useful for quick solution of a complicated equation.
3-3
1
EXE ENTER
)
ENTER
A P
ENTER
8
* *
1
EXE
EL-9600 Graphing Calculator
Display
(When using EL-9600)
Newton's method will
prompt with a guess or a
starting point.
The answer is : h = 4.17
The answer is : h = 5.56
Notes