Calculated Industries 4094 Pocket Reference Guide - Manual (Page 4)

GeTTinG sTarTed
You may want to practice getting a feel for
your calculator keys by reading through the
key definitions and learning how to enter basic
feet-inch-fractions and metric, how to store
values in Memory, etc., before proceeding to
the examples.
order of operations
Unlike other Calculated Industries calculators,
which use the Chaining Method of Operations,
this calculator uses the Order of Operation
Method.
● Chaining Method (“as entered”):
10 + 4 x 5 = 70
● Order of Operations: 10 + 4 x 5 = 30
The Order of Operations method of computing
is based on the following order of precedence:
1) Expressions inside of parentheses
2) Single-variable functions that perform
the calculation and display the result
immediately (trig functions, square,
square root, x y , percent, reciprocal,
angle conversions)
3) Multiplication and division
4) Addition and subtraction
4094-Inside Pages_Corrected.indd 4 4/27/2009 10:21:00 AM