Casio FX300MS User Guide - Page 32

Order of Operations - log base 2

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k Order of Operations Calculations are performed in the following order of precedence. 1 Coordinate transformation: Pol (x, y), Rec (r, θ) 2 Type A functions: With these functions, the value is entered and then the function key is pressed. x3, x2, xҀ1, x!, ° ' " m, m1, m2, n Angle unit conversions (DRG') 3 Powers and roots: ^ (xy), x 4 ab/c 5 Abbreviated multiplication format in front of π, e (natural logarithm base), memory name, or variable name: 2π, 3e, 5A, πA, etc. 6 Type B functions: With these functions, the function key is pressed and then the value is entered. , 3 , log, In, ex, 10x, sin, cos, tan, sinҀ1, cosҀ1, tanҀ1, sinh, cosh, tanh, sinhҀ1, coshҀ1, tanhҀ1, (Ҁ) 7 Abbreviated multiplication format in front of Type B functions: 2 3, Alog2, etc. 8 Permutation and combination: nPr, nCr 9 ҂, Ö 0 ѿ, Ҁ • 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

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E-30
k
Order of Operations
Calculations are performed in the following order of prec-
edence.
1
Coordinate transformation: Pol (
x
,
y
), Rec (
r
,
θ
)
2
Type A functions:
With these functions, the value is entered and then the
function key is pressed.
x
3
,
x
2
,
x
µ
1
,
x
!,
°
’ ”
m
,
m
1
,
m
2
,
n
Angle unit conversions (DRG
'
)
3
Powers and roots:
^
(
x
y
)
,
x
4
a
b
/
c
5
Abbreviated multiplication format in front of
π
,
e
(natu-
ral logarithm base), memory name, or variable name:
2
π
, 3
e
, 5A,
π
A, etc.
6
Type B functions:
With these functions, the function key is pressed and
then the value is entered.
,
3
, log, In,
e
x
, 10
x
, sin, cos, tan, sin
µ
1
, cos
µ
1
,
tan
µ
1
, sinh, cosh, tanh, sinh
µ
1
, cosh
µ
1
, tanh
µ
1
, (
µ
)
7
Abbreviated multiplication format in front of Type B func-
tions: 2
3, Alog2, etc.
8
Permutation and combination:
n
P
r
,
n
C
r
9
±
,
´
0
³
,
µ
•
Operations of the same precedence are performed from
right to left.
e
x
In
120
→
e
x
{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
–2
4
= –16