32
—
S
HEET
M
ETAL
/HVAC
P
RO
C
ALC
i. Basic Cumulative Memory (M+)
Example 1:
Store 100 into M+, add 200, then subtract 50. Clear the Memory:
KEYSTROKE
DISPLAY
1 0 0 µ
M+ 100.
2 0 0 µ
M+ 200.
5 0 Ç µ
M– 50.
® ®
M+ 250.
Note: To Clear Memory (M+):
- press
® ®
; or
- turn off the calculator.
Example 2:
Store 100 into M+, then replace this value with 200 using Memory
Swap:
KEYSTROKE
DISPLAY
1 0 0 µ
M+ 100.
® µ
M+
100.
2 0 0 Ç ®
SWAP 100.
® µ
M+
200.
® ®
M+ 200.
ii. Permanent Storage Registers (M1, M2, and M3)
Examples:
Store a rate of $175 into M1 and recall the value:
KEYSTROKE
DISPLAY
1 7 5 Ç 1
M-1 175.
O o
0.
® 1
M-1
175.
Store 1,575 Square Meters into M2 and recall the value:
KEYSTROKE
DISPLAY
1 5 7 5 m m Ç 2
M-2 1575.
SQ M
O o
0.
® 2
M-2
1575.
SQ M
Note: To Clear M1-M3: Values stored in M1-M3 will remain permanently stored, even
after you turn the calculator off. You will never need to clear the storage registers;
simply enter a new value. However, if you wish to clear M1-M3 to “zero”:
- Enter
0 Ç 1
,
0 Ç 2
or
0 Ç 3
STORED
STORED
STORED
M
M
STORED
M
M
M
M
M
