kOrder of Operations

Calculations are performed in the following order of prec- edence.

1Coordinate transformation: Pol (x, y), Rec (r, θ)

2Type A functions:

With these functions, the value is entered and then the function key is pressed.

x3, x2, x1, x!, ° ’ ”

m, m1, m2, n

Angle unit conversions (DRG')

3Powers and roots: ^ (xy), x

4ab/c

5Abbreviated multiplication format in front of π, e (natu-

ral logarithm base), memory name, or variable name: 2π, 3e, 5A, πA, etc.

6Type B functions:

With these functions, the function key is pressed and

then the value is entered.

, 3 , log, In, ex, 10x, sin, cos, tan, sin1, cos1, tan1, sinh, cosh, tanh, sinh1, cosh1, tanh1, ()

7Abbreviated multiplication format in front of Type B func- tions: 2 3, Alog2, etc.

8Permutation and combination: nPr, nCr

9, 

0, 

• Operations of the same precedence are performed from right to left. exIn 120 → ex{In( 120)}

•Other operations are performed from left to right.

•Operations enclosed in parentheses are performed first.

•When a calculation contains an argument that is a negative number, the negative number must be enclosed within parentheses. The negative sign (–) is treated as a Type B function, so particular care is required when the calculation includes a high-priority Type A function, or power or root operations.

Example: ( –2)4= 16

–24= –16

E-30