MATLAB®

asech - Inverse hyperbolic secant

Syntax

Y = asech(X)

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 .

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

Definition

The hyperbolic inverse secant can be defined as

Algorithm

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

asecd

asin