Alva MPO 5500, User Manual

Page: 69 / 110

Using the utilities 68
Operator Action Example
[ / ]+[ = ] 1 / Number [ 6 ] [ / ] [ = ]
‘ 0.16666666 ’
[ - ]+[ = ] - Number [ 6 ] [ - ] [ = ] ‘ -6 ’
12.6.1 Typing digits
Type the digit [ 0 ] to [9] in your calculations. The MPO will
always speak strings of numbers as separate digits.
Before pressing [
= ] to calculate a result, an expression can
first be edited. Use [ Cursor Left/Right ] to reposition the
cursor and [ Backspace ] to delete a character to the left of the
cursor. As you type an operator or Number, it is inserted at the
cursor position.
To delete the last entered data, use the shortcut [
3 ] + [ 7 ]. To
clear the display, use the shortcut [ 2 ] + [ 3 ] + [ 7 ].
A beep will sound if you type an invalid character.
12.6.2 Memory storage
You can make use of the clipboard as temporary memory
storage to
Cut and Copy numbers. Moreover, you can paste
numbers from the clipboard as you need them.
12.6.3 Changing the evaluation order
Expressions are evaluated from left to right. For example:
A – B/C = (A – B)/C. However, you can use square brackets to
change the evaluation order. For example: A – [B/C] = A –
(B/C).
12.6.4 Using the Calculator Context menu
Instead of typing operators as braille characters you can
alternately use their corresponding commands from the
Calculator Context menu.