/* * call-seq: * dvector.cosh! -> dvector * * Replace each entry x of _dvector_ with cosh(x). * * a = Dvector[ 1.1, -2.2, 5.3 ] * a.cosh! -> Dvector[ cosh(1.1), cosh(-2.2), cosh(5.3) ] * a -> Dvector[ cosh(1.1), cosh(-2.2), cosh(5.3) ] */ VALUE dvector_cosh_bang(VALUE ary) {