Casio CFX-9970G User Manual page 73

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Function Calculations
k k k k k Logarithmic and Exponential Functions
• Be sure to specify "Comp" for Calculation/binary, octal, decimal, hexadecimal
P.5
mode.
log 1.23 (log
= 8.990511144 ! 10
In 90 (log
10 1.23
(To obtain the antilogarithm
of common logarithm 1.23)
e
4.5
(To obtain the antilogarithm
of natural logarithm 4.5)
(–3)
! (–3) = 81
–3 4
7 123
= 1.988647795
2 + 3 !
*
1
k k k k k Hyperbolic and Inverse Hyperbolic Functions
P.5 • Be sure to specify "Comp" for Calculation/binary, octal, decimal, hexadecimal
mode.
sinh 3.6 = 18.28545536
cosh 1.5 – sinh 1.5
= 0.2231301601
e
=
(Proof of cosh
cosh
Determine the value of
when tanh
= tanh
x
= 0.3439419141
Example
1.23)
10
–2
90) = 4.49980967
e
= 16.98243652
= 90.0171313
4 = (–3) ! (–3) ! (–3)
= –(3 ! 3 ! 3 ! 3) = –81
1
(= 123 )
7
3 – 4 = 10
64
x
x y
^ ( ) and take precedence over multiplication and division.
Example
–1.5
x x
± sinh =
20
–1 = 0.7953654612
15
x
x
4 = 0.88
-1
0.88
4
Operation
!01.23w
!e4.5w
(-3)M4w
-3M4w
7!q123w
2+3*3!q64-4w*
Operation
K6(g)2(HYP)
1(sinh)3.6w
K6(g)2(HYP)
2(cosh)1.5-1(sinh)1.5w
I!Kw
e ±x
)
K6(g)2(HYP)
5(cosh )(20/15)w
–1
K6(g)2(HYP)
6(tanh
–1 )0.88/4w
Display
l1.23w 0.08990511144
I90w
16.98243652
1.988647795
1
Display
18.28545536
0.2231301601
0.7953654612
0.3439419141
4.49980967
90.0171313
81
– 81
10
– 1.5
46