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.
He coshed him on the head and took what police say was "a substantial sum".
Rachel Clark, 19, wept as she described how one attacker coshed her boyfriend Paul McMillan, also 19, and then another knifed him.