Real Number Functions - HP 48gII User Manual

For example, to calculate tanh(2.5), in the ALG mode, when using SOFT
menus over CHOOSE boxes, follow this procedure:
„´
) @ @HYP@
@@TANH@
2.5`
In RPN mode, the same value is calculated using:
2.5`
„´
) @ @HYP@
@@TANH@
As an exercise of applications of hyperbolic functions, verify the following
values:
SINH (2.5) = 6.05020..
COSH (2.5) = 6.13228..
TANH(2.5) = 0.98661..
EXPM(2.0) = 6.38905....
Once again, the general procedure shown in this section can be applied for
selecting options in any calculator menu.

Real number functions

Selecting option 5. REAL.. in the MTH menu, with system flag 117 set to
CHOOSE boxes, generates the following menu list:
Select MTH menu
Select the HYPERBOLIC.. menu
Select the TANH function
Evaluate tanh(2.5)
Enter argument in the stack
Select MTH menu
Select the HYPERBOLIC.. menu
Select the TANH function
ASINH(2.0) = 1.4436...
ACOSH (2.0) = 1.3169...
ATANH(0.2) = 0.2027...
LNP1(1.0) = 0.69314....
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