4 — Construction Master IV
G
ETTING
S
TARTED
Key Definitions/Functions
Basic Function Keys
[+] [–] [x] [÷] [=]
Arithmetic operation keys.
[%]
Four-function percent key.
[0] – [9] and [ • ]
Digits used for keying-in numbers.
[Off] — Off Key
Turns all power off, clearing all
non-permanent registers.
[On/C] — On/Clear Key
Turns on power. Pressing once
clears the display. Pressing twice
clears all temporary values.
[Conv] — Convert Key
Used with the dimensional keys to
convert between dimensions or with
other keys to access special func-
tions.