Logarithmic And Exponential Functions - Casio fx-9860G AU User Manual

k Logarithmic and Exponential Functions
• Be sure to specify Comp for Mode in the Setup screen.
Example
log 1.23 (log 1.23) = 0.08990511144
10
log 8 = 3
2
In 90 (log 90) = 4.49980967
e
1.23
10 = 16.98243652
(To obtain the antilogarithm of common
logarithm 1.23)
e 4.5
= 90.0171313
(To obtain the antilogarithm of natural
logarithm 4.5)
(–3) 4 = (–3) (–3)
–3 4 = –(3 3 3
1
7
123 (= 123 ) = 1.988647795
7
3
2 + 3 64 – 4 = 10
x
y
x
* 1 ^ ( ) and take precedence over
multiplication and division.
# You cannot use a differential, quadratic
differential, integration, , maximum/minimum
value, Solve, RndFix or log ab calculation
expression inside of a log ab calculation term.
2-4-5
Function Calculations
(–3) (–3) = 81
3) = –81
Operation
l1.23w
<Line>
K4(CALC)6(g)4(log a b)2,8)w
<Math>
4(MATH)2(log a b) 2e8w
I90w
x
!l(10
)1.23w
x
!I(
e )4.5w
(-3)M4w
-3M4w
<Line>
x
7!M( )123w
<Math>
x
!M(
)7e123w
<Line>
x
2+3*3!M(
<Math>
x
2+3*!M(
# The Linear input mode and Math input mode
produce different results when two or more
powers are input in series, like: 2M3M2.
Linear input mode: 2^3^2 = 64
Math input mode:
This is because the Math input mode internally
treats the above input as: 2^(3^(2)).
20050401
1
)64-4w*
)3e64e-4w
= 512