HP HP-20S - Parts of Numbers

Keys Function
S] Hyperbolic sine.
() Y Inverse hyperbolic sine.
(-] Hyperbolic cosine.
(¥ (#] Inverse hyperbolic cosine.
&Y Hyperbolic tangent.
[+ Y Inverse hyperbolic tangent.
Keys: Display: Description:
5 (=] 74.2032 Hyperbolic sine.
540.25 (=) Inverse hyperbolic
(A
6.9852
cosine.
Parts of Numbers
Keys Function
) Integer part of the number.
() Fractional part of the number (the number without its integer
part).
) Absolute value of the number.
(] Rounds the number internally to the number of digits specified
in the current FIX, SCI, or ENG display format. (No rounding
occurs in ALL mode.)
3: Numeric Functions 41