SOURCE: CASIO fx-115ES I need to calculate
Actually, the answer is 79.
The fx-115ES does not have a key for the modulus operation. Nor does it have an integer-part or fractional-part operation. However, it is possible to calculate the remainder using integer arithmetic.
Press MODE 4 to shift into integer mode. Then type in 3 5 2 - 9 1 * ( 3 5 2 / 9 1 ) = and see the answer 79. It's a pain as both numbers have to be entered twice, but it does get the job done.
To get back to working with real numbers again, press MODE 1 ( or MODE 2 for complex).
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