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Chapter 11: Programming Features
9. Preinstalled program
There is one preinstalled program ("integral").
Calculating the area between graphs for a given interval
Integral
• Enter necessary equations before executing this program.
1. Press P A 0 1.
2. Press 1 to select "∫Y1dx", 2 to select "∫Y1-Y2dx" or
3. Press 1 ~ 3 to select the first equation, and then
4. Input a lower value while "LOWER=?" is displayed, then press
5. Input an upper value while "UPPER=?" is displayed, then press
6. Press E to display the calculation result without the graph.
Errors and calculation ranges
• If "ERROR" is displayed instead of a calculation result, press E,
then enter the numeric values again.
• If a screen like the one shown
on the right is displayed during
calculation or after you exit the
program, press C.
Please do not press ; or
' instead of C. The
editing screen will be displayed
if you press ; or '.
Press # at this time to exit the
editing screen.
220
3 to select "AREA BETWEEN Y1-Y2" to avoid the surface
cancel each other.
press 1 ~ 3 to select the second equation, if need.
E.
E.
The calculation result is displayed with highlighted graph.
Chapter 13: Programming Features
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