/* * call-seq: * dvector.exp -> a_dvector * * Returns of copy of _dvector_ with each entry x replaced by exp(x). * * a = Dvector[ 1.1, -2.2, 5.3 ] * a.exp -> Dvector[ exp(1.1), exp(-2.2), exp(5.3) ] */ VALUE dvector_exp(VALUE ary) {