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K hyperbolic and inverse hyperbolic functions – Casio SERIES FX-9860G User Manual

Page 89

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20070201

k Hyperbolic and Inverse Hyperbolic Functions

• Be sure to specify Comp for Mode in the Setup screen.

Example

Operation

sinh 3.6 = 18.28545536

K6(g)2(HYP)1(sinh)3.6w

cosh 1.5 – sinh 1.5
= 0.2231301601
=

e

–1.5

(Display: –1.5)

(Proof of cosh

x

± sinh

x

=

e

±

x

)

K6(g)2(HYP)2(cosh)1.5-
1(sinh)1.5w
I!-(Ans)w

cosh

–1

20

15

= 0.7953654612


K6(g)2(HYP)5(cosh

–1

)(20/15)

w


K6(g)2(HYP)5(cosh

–1

)

$20c15w

Determine the value of

x

when tanh 4

x

= 0.88

x

=

tanh

–1

0.88

4

= 0.3439419141


K6(g)2(HYP)6(tanh

–1

)0.88/4

w


$K6(g)2(HYP)6(tanh

–1

)0.88

c4w

2-4-6

Function Calculations