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asinh
Inverse hyperbolic sine
Syntax
Y = asinh(X)
Description
Y = asinh(X) returns the inverse hyperbolic sine for each element of X.
The asinh function operates element-wise on arrays. The function's domains and ranges include complex values. All angles are in radians.
Examples
Graph the inverse hyperbolic sine function over the domain -5<=x<=5.
x = -5:.01:5;
plot(x,asinh(x)), grid on
Definition
The hyperbolic inverse sine can be defined as
sinh^(-1)(z)=log(z+(z^2+1)^(1./2))
Algorithm
asinh uses FDLIBM, which was developed at SunSoft, a Sun Microsystems, Inc. business, by Kwok C. Ng, and others. For information about FDLIBM, see http://www.netlib.org.
See Also
asin, asind, sin, sinh, sind
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More at http://www.nsf.gov/news/news_summ.jsp?cntn_id=117388&WT.mc_id=USNSF_51&WT.mc_ev=click
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