HP (Hewlett-Packard) 50g ユーザーズマニュアル

Page 3-9

Selecting Option 4. HYPERBOLIC.. , in the MTH menu, and pressing 

@@OK@@,

produces the hyperbolic function menu:

     

The hyperbolic functions are:

Hyperbolic sine, SINH, and its inverse, ASINH or sinh

-1

Hyperbolic cosine, COSH, and its inverse, ACOSH or cosh

-1

Hyperbolic tangent, TANH, and its inverse, ATANH or tanh

-1

This menu contains also the functions:

EXPM(x) = exp(x) – 1,

LNP1(x) = ln(x+1).

Finally, option 9.  MATH, returns the user to the MTH menu.

For example, in ALG mode, the keystroke sequence to calculate, say, tanh(2.5),
is the following:

„´

Select MTH menu

4

@@OK@@  

Select the 4. HYPERBOLIC.. menu

5

@@OK@@  

Select the 5. TANH  function

2.5`

Evaluate tanh(2.5)   

The screen shows the following output:

In the RPN mode, the keystrokes to perform this calculation are the following:

2.5`

Enter the argument in the stack   

„´

Select MTH menu

4

@@OK@@  

Select the 4. HYPERBOLIC.. menu

5

@@OK@@  

Select the 5. TANH  function