EXP Computer AudioDrive Ver. 3.0 - Manual (Page 63)

Audio Applications 3.0 User Guide
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The Talking Calculator Page 57
Calculator Functions
Button Key Function
AC Esc All Clear--deletes the current calculation.
CE Del Clear Entry--deletes the current number.
Back Backspace Deletes the last digit of the current number.
+ + Addition
- - Subtraction
* * Multiplication
/ / Division
sqrt @ Square root of current number
% % Percentage
+/- F9 Change the sign of the current number
1/x r Reciprocal of the current number
= = or Enter Result of the current calculation
Click again to repeat the operation
. . or , Decimal point
REP Repeat the last announcement
DIG Hear each digit of the result
NUM Hear the result as a whole number
ANS Hear only the result
MUT Silence the calculator