Logarithms And Exponentials; Hyperbolic Functions - LEXIBOOK SC460 Owner's Manual

Logarithms and exponentials

[ln]
[log]
[SHIFT] [e x ]
E.g.:
[ ln ] 20 [=]
[ log ] [.] 01 [=]
x
[SHIFT] [e ] 3 [=]

Hyperbolic functions

[hyp]
The following hyperbolic functions can be obtained by pressing the [hyp]
function key:
[hyp] [cos]
[hyp] [sin]
[hyp] [tan]
[SHIFT] [hyp] [cos
[SHIFT] [hyp] [sin
[SHIFT] [hyp] [tan
E.g.:
[hyp] [sin] 0 [=]
[hyp] [cos]0 [=]
[SHIFT] [hyp] [tan
[SHIFT] [hyp] [cos
Calculation of (cosh 1.5 + sinh 1.5)
[(] [hyp][cos] 1 [.] 5 [+] [hyp][sin] 1 [.]5 [)][x
Copyright © Lexibook 007
SC460IM0237.indb 57
Natural (Napierien) logarithm key.
Decimal logarithm key.
Exponential function key.
-> ln 20 |
-> log .01 |
-> e3 |
Hyperbolic function key.
cosh(x)
sinh(x)
tanh(x)
-1 -1
] cosh (x)
-1 -1
] sinh (x)
-1 -1
] tanh (x)
-> sinh0
-> cosh0
-1
] 0 [=] -> tanh
-1 ] 1 [=] -> cosh

2.995732274
-2.
20.08553692
Cosine hyperbolic.
Sine hyperbolic.
Tangent hyperbolic.
Argument cosine hyperbolic.
Argument sine hyperbolic.
Argument tangent hyperbolic.
| 0.
| 1.
-1
0 | 0.
-1 1 | 0.
 ][=] -> 20.08553692
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20/6/07 15:28:08