kOrder of Operations and Levels
Operations are performed in the following order of prec- edence.
1.Functions
2.xy, x1/y, R →P, P →R, nPr, nCr
3.,
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 operaitons en- closed in the innermost set of parentheses are performed first.
•Registers L1 through L6 store operations. There are six re- gisters, 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
The table below shows register contents following the above input.
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