57
Copyright © Lexibook 007
ENGLISH
Logarithms and exponentials
[ln]
[log]
[SHIFT] [e
x
]
Natural (Napierien) logarithm key.
Decimal logarithm key.
Exponential function key.
E.g.:
[ ln ] 20 [=]
-> ln 20
|
2.995732274
[ log ] [.] 01 [=]
-> log .01 |
-2.
[SHIFT] [
e
x
] 3 [=]
-> e3
|
20.08553692
Hyperbolic functions
[hyp]
Hyperbolic function key.
The following hyperbolic functions can be obtained by pressing the [hyp]
function key:
[hyp] [cos]
[hyp] [sin]
[hyp] [tan]
[SHIFT] [hyp] [cos
-1
]
[SHIFT] [hyp] [sin
-1
]
[SHIFT] [hyp] [tan
-1
]
cosh(x)
sinh(x)
tanh(x)
cosh
-1
(x)
sinh
-1
(x)
tanh
-1
(x)
Cosine hyperbolic.
Sine hyperbolic.
Tangent hyperbolic.
Argument cosine hyperbolic.
Argument sine hyperbolic.
Argument tangent hyperbolic.
E.g.:
[hyp] [sin] 0 [=]
->
sinh0
| 0.
[hyp] [cos]0 [=]
->
cosh0
| 1.
[SHIFT] [hyp] [tan
-1
] 0 [=] ->
tanh
-1
0 | 0.
[SHIFT] [hyp] [cos
-1
] 1 [=] ->
cosh
-1
1 | 0.
Calculation of (cosh 1.5 + sinh 1.5)
[(] [hyp][cos] 1 [.] 5 [+] [hyp][sin] 1 [.]5 [)][x
][=]
-> 20.08553692
SC460IM0237.indb 57
20/6/07 15:28:08