User's Manual

BrailleNote Apex BT User Guide
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You can review the calculation by pressing the previous and next thumb keys together. The Braille
display will show 3 plus 5 minus 2 equals 6 in your selected Braille code. Pressing previous and
next again will return to just displaying the answer. If the speech is on, the speech will mirror the
content of the braille display.
If you make a mistake, you can use BACKSPACE to delete entries.
To clear the result of the previous calculation, enter a new calculation or use the Clear command
which is BACKSPACE with dots 1-4.
If the current calculation started with the result of the previous one, BACKSPACE does not delete
that number, because it was calculated rather than typed. Entering a new calculation clears the last
result.
Try some simple calculations to get the feel of the calculator.
The Calculator Help gives a complete list of key combinations. To get help, press SPACE with H.
You can also check key combinations with the "Key Announce" mode, by pressing SPACE with W.
In this mode, pressing a particular key combination causes the resulting function to be displayed.
To return to the normal calculator function, press SPACE with E.
Remember that the order for entering numbers and operators is just as you would write them.
8.2.1 Reviewing the Calculation.
If you are not sure that you have entered a calculation correctly, you can review the calculation
before pressing ENTER.
When using a braille display, if the calculation is longer than the braille display, you can press the
PREVIOUS thumb key to move the Braille display back, that is to the left, one cell at a time, and
the NEXT thumb key move the Braille display forward, that is to the right, one cell at a time. After
pressing ENTER to complete the calculation, pressing the PREVIOUS and NEXT buttons together
toggles between displaying the result and the details of the calculation.
When using speech, there are two review commands available before pressing ENTER. They are:
To hear the whole calculation, press SPACE with dots 1-4.
To hear the last number or operator entered, press SPACE with dots 2-5.
8.2.2 Calculation Entry Errors.
When you type a calculation, KeyPlus beeps if you make a mistake, such as: 3 + *
Press SPACE with H to find the reason. In this case, KeyPlus displays: "Value Expected"
Other messages indicate different errors. You may want to review the calculation after an incorrect
entry, by pressing SPACE with dots 1-4, to find out where you are.