Casio kOrder of Operations and Levels, 2 -OOO3 +4 -OO5 +4, 3., , 4.
, , — 29 —, 1.Functions, 5. Press tto turn power on, 2.xy, x1/y, R →P, P →R, nPr, nCr

5. Press tto turn power on.

kOrder of Operations and Levels

Operations are performed in the following order of prec- edence.1.Functions2.xy, x1/y, R →P, P →R, nPr, nCr3., 4.
, 

•Operations with the same precedence are performed from left to right, with operations enclosed in parentheses per- formed first. If parentheses are nested, the operations en- closed in the innermost set of parentheses are performed first.

•Registers L1 through L6 store operations.There are six reg- isters, so calculations up to six levels can be stored.

•Each level can contain up to three open parentheses, so parentheses can be nested up to 18 times.

•Example: The following operation uses 4 levels and 5 nested parentheses.

2 -O OO3 +4 -OO5+4

The table on the next page shows register contents following the above input.

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