User Guide

Po c k e t Re f e R e n c e Gu i d e — 5
i
Inch Key ─ enters or converts to
Inches. Entry can be whole or decimal
number. Also used with the / key for
entering Fractional Inch values (for
example, 9 i 1 / 2). Repeated
presses during conversions toggle
between Fractional and Decimal
Inches.
/
Fraction Bar Key ─ used to enter
fractions. Fractions can be entered as
proper (1/2, 1/8, 1/16) or improper
(3/2, 9/8).
m
Meter Key ─ enters or converts to
Meters.
Convert Key Functions
Ç
Convert Key ─ used with the
dimensional unit keys to convert
between dimensions, the
Project Keys to calculate
material quantities, or with other
keys to access special functions.
Ç –
Change Sign (+/
- ) ─ toggles
displayed value between positive
and negative.
(cont'd)
Ç ÷
Square Root (
√
¯
x ) ─ finds
Square Root of value in display.
Ç x
Value Squared (x
2
) ─ finds
Square of value in display.
Ç %
Pi (
π ) ─ constant 3.141593.
Memory
Ç +
M+ ─ adds or stores a value in
the semi-permanent Memory (for
example, 1 5 0 Ç +).
Semi-permanent means the
value is cleared when the
calculator is turned off.
Ç –
Ç +
M- ─ subtracts a value from the
semi-permanent Memory
(for example, 1 5 0 Ç –
Ç + subtracts 150 from the
Memory).
Ç =
Memory Recall (MR) ─ recalls
Memory value (for example, if
150 has been stored in Memory,
pressing Ç = will display
150).
Ç o
Memory Clear (MC) ─ clears
Memory value.
PRG8510E-B.indd 5 1/4/2011 1:42:30 PM