Hyperbolic functions, Key prograiniiiable description command – HP 48g Graphing Calculator User Manual
Page 145
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Hyperbolic Functions
Hyperbolic functions are found in the MTH HYP menu
( ( M T H )
H Y P
).
Key
Prograiniiiable
Description
Command
( M T H ) H Y P
;
S I N K
SINH
Prefix. Hyperbolic sine: (e'^ -
e“'0/2.
Fi S I h! ri
ASINH
Prefix. Inverse hyperbolic sine: sinli”'^
COS l-i
COSH
ti- •
Prefiix. Hyperbolic cosine: [e^ p e^^)/'2.
fi
C
0 S i"i
ACOSH
Prefix/:. Inverse hyperbolic cosine:
cosh~'-
X .
I H r-4
TANH
Prefix. Hyperbolic tangent:
sinh .'c/cosh
I .
M T' p i-j
ATANH
Prefix. Inverse hyperbolic tangent:
sinh^^(,r/\/]0- ;r-).
EXPM
Prefix,
e ' "
— 1. Argument x is in level 1.
(EXPM is more accurate than EXP
when the argument to e'’’ is close to 0.)
LNPl
Prefix. In (;r
-f
1). Argument x is in
level E (LNPl, In plus 1, is more
accurate than LN when the argument to
In is close to 1.)
12
Functions of Real and Complex Numbers 12-3