Inverse Hyperbolic Sine
المؤلف:
Abramowitz, M. and Stegun, I. A.
المصدر:
"Inverse Circular Functions." §4.4 in Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. New York: Dover
الجزء والصفحة:
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3-6-2019
3008
Inverse Hyperbolic Sine
The inverse hyperbolic sine 
(Beyer 1987, p. 181; Zwillinger 1995, p. 481), sometimes called the area hyperbolic sine (Harris and Stocker 1998, p. 264) is the multivalued function that is the inverse function of the hyperbolic sine.
The variants 
or 
(Harris and Stocker 1998, p. 263) are sometimes used to refer to explicit principal values of the inverse hyperbolic sine, although this distinction is not always made. Worse yet, the notation 
is sometimes used for the principal value, with 
being used for the multivalued function (Abramowitz and Stegun 1972, p. 87). The notations 
(Jeffrey 2000, p. 124) and 
(Gradshteyn and Ryzhik 2000, p. xxx) are sometimes also used. Note that in the notation 
, 
is the hyperbolic sine and the superscript 
denotes an inverse function, not the multiplicative inverse.
Its principal value of 
is implemented in the Wolfram Language as ArcSinh[z] and in the GNU C library as asinh(double x).
The inverse hyperbolic sine is a multivalued function and hence requires a branch cut in the complex plane, which the Wolfram Language's convention places at the line segments 
and 
. This follows from the definition of 
as
 |
(1)
|
The inverse hyperbolic sine is given in terms of the inverse sine by
 |
(2)
|
(Gradshteyn and Ryzhik 2000, p. xxx).
The derivative of the inverse hyperbolic sine is
 |
(3)
|
and the indefinite integral is
 |
(4)
|
It has a Maclaurin series
(OEIS A055786 and A002595), where 
is a Legendre polynomial. It has a Taylor series about infinity of
REFERENCES:
Abramowitz, M. and Stegun, I. A. (Eds.). "Inverse Circular Functions." §4.4 in Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. New York: Dover, pp. 79-83, 1972.
Beyer, W. H. CRC Standard Mathematical Tables, 28th ed. Boca Raton, FL: CRC Press, pp. 142-143, 1987.
GNU C Library. "Mathematics: Inverse Trigonometric Functions." http://www.gnu.org/manual/glibc-2.2.3/html_chapter/libc_19.html#SEC391.
Gradshteyn, I. S. and Ryzhik, I. M. Tables of Integrals, Series, and Products, 6th ed. San Diego, CA: Academic Press, p. xxx, 2000.
Harris, J. W. and Stocker, H. Handbook of Mathematics and Computational Science. New York: Springer-Verlag, 1998.
Jeffrey, A. "Inverse Trigonometric and Hyperbolic Functions." §2.7 in Handbook of Mathematical Formulas and Integrals, 2nd ed.Orlando, FL: Academic Press, pp. 124-128, 2000.
Sloane, N. J. A. Sequences A002595/M4233, A052468, A052469, and A055786 in "The On-Line Encyclopedia of Integer Sequences."
Spanier, J. and Oldham, K. B. "Inverse Trigonometric Functions." Ch. 35 in An Atlas of Functions. Washington, DC: Hemisphere, pp. 331-341, 1987.
Zwillinger, D. (Ed.). "Inverse Hyperbolic Functions." §6.8 in CRC Standard Mathematical Tables and Formulae. Boca Raton, FL: CRC Press, pp. 481-483, 1995.
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