Franklin 901 ユーザーズマニュアル

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M+
Adds the current value to the value stored in
memory (but does not display the sum)
M-
Subtracts the current value from the value
stored in memory (but does not display the dif-
ference)
Using the Menu
To access the menu, tap 
in the Control Pad. The program
uses a menu that contains the following items.
Help
Displays online help.
About Displays legal information about 
Calculate
.
Exit
Closes the program.
Making Calculations
To make a simple calculation, follow these steps.
1. Tap a number. For example, tap 4.
To enter a negative value, tap the number and then tap +/-.
2. Tap the key for the mathematical function you want. For
example, tap +.
A symbol for the function appears on the display.
3. Tap another number. For example, tap 9.
4. Tap =.
The sum, 13, appears on the screen. To clear the program,
press C/CE.
To subtract a percentage from a value, follow these steps.
1. Tap the total value. For example, tap 300.
2. Tap the key for the mathematical function you want. For
example, tap -.
3. Tap the percent value. For example, tap 5.
4. Tap %.
The value that equals a 5% discount from 300, 285, appears
on the screen.
200
Chapter 16. Calculate
Note:
If you want to
perform a func-
tion using the
number in the
display, simply
tap the function
and then =
instead of tapping
the number
again. For exam-
ple, tap 4 + = to
get 8
Note:
You cannot
repeat the calcu-
lation of a per-
centage by press-
ing again.