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Finally, in order to select, for example, the hyperbolic tangent (tanh) function,

simply press

.

 

 

 

 

 

@@TANH@

key or

Note: To see additional options in these soft menus, press the

the

keystroke sequence.

 

For example, to calculate tanh(2.5), in the ALG mode, when using SOFT menus over CHOOSE boxes, follow this procedure:

In RPN mode, the same„´value@@HYP@is calculated@@TANH@2.5`using:

As an exercise of applications2.5`„´of hyperbolic functions,)@@HYP@@@TANH@verify the following

values:

 

 

sinh (2.5) = 6.05020..

sinh-1(2 0) = 1.4436…

cosh (2.5) = 6.13228..

acosh-1(2.0) = 1.3169…

tanh (2.5) = 0.98661..

tanh-1(0 2) = 0.2027…

expm(2.0) = 6.38905….

lnp1(1 0) = 0.69314….

Operations„«

with units

L

Numbers in the calculator can have units associated with them. Thus, it is possible to calculate results involving a consistent system of units and produce a result with the appropriate combination of units.

The UNITS menu

The units menu is launched by the keystroke combination

(associated

with the

key). With system flag 117 set to CHOOSE boxes, the result is

the following6menu:‚Û

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Image 61
HP 49g manual With units, Units menu, Key or