The Braille Lite M20-M40 User's Manual - Freedom Scientific

Performing Percentage Calculations
To determine the percentage of a number, type
the percentage value, the percent sign, and the
number from which you want to derive the
percentage. Press E-CHORD (DOTS 1-5 CHORD)
to calculate the expression. For example, to find
20 percent of 500, enter 20%500, and press E-
CHORD (DOTS 1-5 CHORD). The Braille Lite
calculates the expression and returns "100."
Extracting a Square Root
To extract the square root of a number, type the
number, then press AR-SIGN CHORD (DOTS 3-4-
5 CHORD). For example, to find the square root
of 25, type 25 and press AR-SIGN CHORD (DOTS
3-4-5 CHORD). The Braille Lite immediately
calculates the expression and returns “5.”
Setting Decimal Precision
The Calculator’s result varies according to the
number of decimal places you have set in your
calculator. Two decimal places are usually
enough for most situations; but for special
situations when you need more precision,
results can be calculated to 12 decimal places.
From within the calculator, press P-CHORD
(DOTS 1-2-3-4 CHORD). The Braille Lite
prompts for the number of decimal places. Enter
a number from 1 to 12.
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