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Advanced Keyboard/CALCULUS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Executing a program
3. Enter the function f(x) = cos x, by pressing Y= CL cos X/θ/T/n .
Press ENTER CL to clear additional prompts.
4. Execute the RECTAPP program, press PRGM A , highlight the
'RECTAPP' program, and press ENTER . Enter 'N' of 5 by pressing 5
ENTER , followed by 'A' of 0 and 'B' of 1. You will see a display of left,
midpoint and right rectangular approximations for the area under the
cosine function between 0 and 1 with 5 intervals in the partition.
5. You can repeat this process for a different number of partitions, different
limits, or another function. Press ENTER to execute the program over and
over again. Press CL to exit the program.
6. If you receive an error statement, press or to go to the line within the
program in which the error occurs. Compare your line with the correct one
above to find the error. Correct the error using the editing features of the
calculator and save the program by pressing 2ndF QUIT . Try executing
the program again.
PROGRAM FOR RECTANGULAR
APPROXIMATION OF AREA (continued)
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