Calculated Industries 4045-B - Manual (Page 4)

4 — Construction Master IV
GETTING STARTED
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.
[ ] — Square Root Key
Used to find the square root of a
non-dimensional or area value.