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- CALCULATOR: The calculator is a standard four-function calculator
- that you can use to add, subtract, multiply and divide. It works like
- any standard calculator -- you enter numbers and use the operation keys
- to reach an answer. The "buttons" on the calculator are gadgets. The
- numbered gadgets represent the digits 0 through 9. The non-numeric
- gadgets represent:
-
- CA Clear all previous entries. Resets the calculator to 0.
- CE Clear the current entry. If you make a mistake typing, select
- this gadget, and re-enter your value.
- * Multiply
- / Divide
- + Add
- - Subtract
- . Decimal point
- <- Delete the last digit entered
- +- Change the sign of the current entry. Positive numbers become
- negative, negative numbers become positive.
- = Display the result of the operation.
-