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