asech - Inverse hyperbolic secant

Syntax

Description

Y = asech(X) returns the inverse hyperbolic secant for each element of X.

The asech 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 secant over the domain 0.01 ≤ x ≤ 1.

x = 0.01:0.001:1;
plot(x,asech(x)), grid on

Definitions

The hyperbolic inverse secant can be defined as

Algorithms

asech uses FDLIBM, which was developed at SunSoft, a Sun Microsystems business, by Kwok C. Ng, and others. For information about FDLIBM, see http://www.netlib.org.

See Also

asec | sech

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