12/10/14 11:48:08.74
>>657
> x[1,] + y[1]
> x[2,] + y[2]
> x[3,] + y[1]
x[1:3,]+y[c(1,2,1)]
12/10/14 11:48:08.74
>>657
> x[1,] + y[1]
> x[2,] + y[2]
> x[3,] + y[1]
x[1:3,]+y[c(1,2,1)]
12/10/14 11:48:08.74
>>657
> x[1,] + y[1]
> x[2,] + y[2]
> x[3,] + y[1]
x[1:3,]+y[c(1,2,1)]