Casio fx-9750G PLUS - Manual (Page 74)

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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
mode.
Example Operation Display
log 1.23 (log
10
1.23)
= 8.990511144 × 10 –2 l 1.23w 0.08990511144
In 90 (log
e
90) = 4.49980967 I 90w 4.49980967
10 1.23 = 16.98243652
(To obtain the antilogarithm
of common logarithm 1.23)
!0 1.23w 16.98243652
e 4.5 = 90.0171313
(To obtain the antilogarithm
of natural logarithm 4.5)
!e 4.5w 90.0171313
(–3) 4 = (–3) Ч (–3) Ч (–3)
Ч (–3) = 81
(- 3)M4w 81
–3 4 = –(3 Ч 3 Ч 3 Ч 3) = –81
- 3M4w – 81
1
7 (= 123 7 ) 123
= 1.988647795 7!q123w 1.988647795
2 + 3 × 3 – 4 = 10 2+3*3!q64-4w* 1 10 64
* 1 ^ ( x y ) and x take precedence over multiplication and division.
k k k k k Hyperbolic and Inverse Hyperbolic Functions
• Be sure to specify “Comp” for Calculation/binary, octal, decimal, hexadecimal
mode.
Example Operation Display
sinh 3.6 = 18.28545536 K6 (g)2(HYP)
1 (sinh) 3.6w 18.28545536
cosh 1.5 – sinh 1.5 K6 (g)2(HYP)
= 0.2231301601 2 (cosh) 1.5-1(sinh)1.5w 0.2231301601
= e –1.5 I!Kw
– 1.5
(Proof of cosh x ± sinh x = e ±x )
cosh –1 20 = 0.7953654612 K6 (g)2(HYP)
15
5 (cosh –1 )( 20/15)w 0.7953654612
Determine the value of x
when tanh 4 x = 0.88
x = tanh
-1 0.88
K6 (g)2(HYP) 4
= 0.3439419141 6 (tanh –1 ) 0.88/4w 0.3439419141
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