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Using the Calculator (the Calculator)
C
Clears the entire calculation and enables you to begin a fresh calculation.
+/–
Toggles the current number between a negative and positive value. If you
want to enter a negative number, enter the number first and then press the
+/– button.
M+
Places the current number in memory. Each new number you enter with the
M+ button is added to the total stored in memory. The number that you add
can be either a calculated value or any number you enter by pressing the
number buttons. Pressing this button has no effect on the current calculation
(or series of calculations); it merely places the value into memory until it is
recalled.
MR
Recalls the stored value from memory and inserts it in the current
calculation.
MC
Clears any value that is stored in the Calculator memory.