Sharp EL-9400, EL-9600c manual EL-9650/9600c Graphing Calculator, A Space T R A P Enter

Models: EL-9650 EL-9600c EL-9400

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A SPACE T  R  A  P  ENTER

EL-9650/9600c Graphing Calculator

Step & Key Operation

*Use either pen touch or cursor to operate.

1-5Solve for the height and enter a starting point of 1.

* 2nd F Manual backgroundManual background EXE Manual backgroundManual background 1 Manual backgroundManual background ENTER

DisplayNotes

Newton's method will prompt with a guess or a starting point.

1-6Solve.

2nd F Manual backgroundManual background EXE ( CL )

2 Save this formula. Give the formula the name “A TRAP”.

2nd F Manual backgroundManual backgroundSOLVER Manual backgroundManual background C * ENTER

A Manual backgroundManual backgroundSPACEManual backgroundManual background T Manual backgroundManual background R Manual backgroundManual background A Manual backgroundManual background P Manual backgroundManual background ENTER

3-1Recall the formula for calculating the area of a trapezoid.

2nd F Manual backgroundManual backgroundSOLVER Manual backgroundManual background B *

0 Manual backgroundManual background 1

3-2Enter the values:

A = 50, B = 8, C = 10.

ENTER

5 0

ENTER

*

 

* 8

 

 

 

 

ENTER Manual backgroundManual background 1 Manual backgroundManual background 0 Manual backgroundManual background ENTER

3-3Solve.

* 2nd F Manual backgroundManual background EXE Manual backgroundManual background 1

ENTER Manual backgroundManual background 2nd F Manual backgroundManual background EXE

The answer is : h = 4.17

The answer is : h = 5.56

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

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Sharp EL-9400, EL-9600c manual EL-9650/9600c Graphing Calculator, A Space T R A P Enter