Texas Instruments BA-20 Profit Manager User Manual - Page 17

Calculations Using Constants, Example: Multiply 3

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• Memory arithmetic changes only the value in the affected memory and not the displayed value. • Memory arithmetic does not complete any calculation in progress. The table lists the available memory arithmetic functions. In each case, the specified memory stores the result. To Press Add the displayed value to the value stored in memory 9 (M9). DH 9 Subtract the displayed value from the value stored in memory 3 (M3). DB 3 Multiply the value in memory 0 (M0) by the displayed value. D < 0 Divide the value in memory 5 (M5) by the displayed value. D 6 5 Raise the value in memory 4 (M4) to the power of the displayed value. D; 4 Calculations Using Constants To store a constant for use in repetitive calculations, enter a number and an operation, and then press & `. To use the stored constant, key in a value and press N. Note: Pressing a key other than a number or N clears the constant. Example: Multiply 3, 7, and 45 by 8 To Clear the calculator. Enter the value for the first calculation. Enter the operation and a constant value. Store the operation and value, and then calculate. Calculate 7 Q 8. Compute 45 Q 8. Press Display & U 0.00 3 3 < 8 8 &` N 24.00 7 N 45 N 56.00 360.00 Overview of Calculator Operations 13

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Overview of Calculator Operations
13
•
Memory arithmetic changes only the value in the affected memory
and not the displayed value.
•
Memory arithmetic does not complete any calculation in progress.
The table lists the available memory arithmetic functions. In each case,
the specified memory stores the result.
Calculations Using Constants
Example: Multiply 3, 7, and 45 by 8
To
Press
Add the displayed value to the value stored in memory 9
(
M9
).
D H
9
Subtract the displayed value from the value stored in
memory 3 (
M3
).
D B
3
Multiply the value in memory 0 (
M0
) by the displayed value.
D <
0
Divide the value in memory 5 (
M5
) by the displayed value.
D 6
5
Raise the value in memory 4 (
M4
) to the power of the
displayed value.
D ;
4
To store a constant for use in repetitive calculations, enter
a number and an operation, and then press
&`
.
To use the stored constant, key in a value and press
N
.
Note:
Pressing a key other than a number or
N
clears the
constant.
To
Press
Display
Clear the calculator.
& U
0.00
Enter the value for the first calculation.
3
3
Enter the operation and a constant value.
<
8
8
Store the operation and value, and then
calculate.
& `
N
24.00
Calculate 7
Q
8.
7
N
56.00
Compute 45
Q
8.
45
N
360.00