Quaternion Function Reference

atanh

Inverse hyperbolic tangent.
(Quaternion overloading of standard MATLAB® function)

Syntax

Y = atanh(X)

Description

atanh(X) computes the inverse hyperbolic sine of its argument, which must be a real quaternion (atanh is not yet implemented for complexified quaternions).

This function is computed using the Matlab® function of the same name by first computing an isomorphic complex number. The result is then assigned the same quaternion axis as the original argument.

Examples

>> atanh(qi + qj + qk)
 
ans = 0 + 0.6046 * I + 0.6046 * J + 0.6046 * K

See Also

QTFM function: tanh
MATLAB® function: atanh

© 2008-2013 Stephen J. Sangwine and Nicolas Le Bihan

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