Is there any way to use VML on 2-dimensional array?

Suppose I have a 2-dimensional array a[m][n],and I want to get the result array of  one row of a[m][n] adding another row of a[m][n].Is there any way to use VML in this case？I‘ve tried to directly use the code like this : vdAdd( n, a[1], a[3], y_add ),but errors comes.

If VML can't support 2D array, is there any other libraries which could support calculate between 2D arrays?

Thanks.