Indices - Casio Fx-82AU PLUS II User Manual

Reciprocals
The u button will display a fraction's reciprocal. To display the reciprocal of 1⅔ enter the fraction and
press = followed by u=.
Fractional indices
The fraction button can be used as an index.
In the MthIO mode the button sequence is 32^a3R5$=.
In the LineIO mode the sequence is 32^3a5)=. Note that the calculator supplies the
first bracket and the second bracket can be omitted if it is the last entry before the = button.
Negative fractional indices
The calculator can execute an impressive range of calculations with negative and positive fractional
indices. Some examples include:
Naturally each of the above examples can be completed in the LineIO mode.
© Sue Thomson and Shriro
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