cosh

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cosh

hyperbolic cosine; a hyperbolic function, cosh z = ½(ez + e--z), related to cosine by the expression cosh iz = cos z, where i = &#221A--1

cosh

(mathematics)
References in periodicals archive ?
He was coshed three or four times and his assailants made off in his van and in the course of doing so the van ran over him and killed him.
Rachel Clark, 19, wept as she described how one attacker coshed her boyfriend Paul McMillan, also 19, and then another knifed him.
He never regretted ruining the life of Jack Mills, the driver coshed during the Great Train Robbery.