>>> let a = (3><5) [1..] >>> a (3><5) [ 1.0, 2.0, 3.0, 4.0, 5.0 , 6.0, 7.0, 8.0, 9.0, 10.0 , 11.0, 12.0, 13.0, 14.0, 15.0 ]
>>> let b = (5><2) [1,3, 0,2, -1,5, 7,7, 6,0] >>> b (5><2) [ 1.0, 3.0 , 0.0, 2.0 , -1.0, 5.0 , 7.0, 7.0 , 6.0, 0.0 ]
>>> a <> b (3><2) [ 56.0, 50.0 , 121.0, 135.0 , 186.0, 220.0 ]