User's Manual

BrailleNote Apex BT User Guide
8-205
8.3.2 Parentheses.
Parentheses, or brackets, are used to change the order in which an equation is evaluated. For
example, the equation: 3 + 4 * 5 is evaluated by adding 3 to the product of 4 and 5. The answer is
23.
If you want the addition of 3 and 4 to occur first and the result to be multiplied by 5, insert
parentheses around the 3 + 4, as follows: ( 3 + 4 ) * 5 = 35.
To enter a left parenthesis, press:
Nemeth: dots 1-2-3-5-6.
UK Braille dots 1-2-6.
UEB dots 1-2-6.
To enter a right parenthesis, press:
Nemeth dots 2-3-4-5-6.
UK Braille: dots 3-4-5.
UEB: dots 3-4-5.
Parentheses can be placed wherever a number can occur. You can use up to 6 levels. If you try to
open more than 6 levels, or close more than are open, KeyPlus beeps.
8.3.3 Negation.
The negation operator is used to enter negative numbers. It is represented by SPACE with dots 3-6.
For example, to calculate 5 divided by negative 2, type: 5 /SPACE with dots 3-6 2 followed by
ENTER. Note that the negation operator is not the same as the subtraction operator, which is just
dots 3-6.