Overhead calculator which emulates the Casio FX55. This calculator has
true fraction display with numerator over denominator. - Simplification
key to reduce fractions - Integer division - Decimal to fraction -
Algebraic logic for correct order of operations - Backspace -
Reciprocals - 18 levels of parentheses. - Percent - Square root - Pi -
x squared - y to the x - Exchange values and exchange value with
memory. - Teachers can receive this item free from Casio with the
purchase of 90 FX55s.
