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