/* * call-seq: * dvector.collect2(other) {|x,y| block } -> dvector * dvector.map2(other) {|x,y| block } -> dvector * * Calls <i>block</i> for each element of _dvector_ along with the corresponding element in _other_. Creates a * new vector containing the values returned by _block_. The vectors must be the same size. * * a = Dvector[ 1, 0, -1 ] * b = Dvector[ 3, 4, 5 ] * a.map2(b) {|x,y| x**2 + y**2 } -> Dvector[ 10, 16, 26 ] * */ VALUE dvector_collect2(VALUE ary, VALUE ary2) {