cells

cells(obj, row, col)

obj is a matrix.

row is a vector of integral type, indicating indices of rows.

col is a vector of integral type of the same length as row, indicating indices of columns.

Return a vector of cells in a matrix by the specified row and column index.

m=(1..15).reshape(3:5)
m;

// obtain the two elements at [0,1] and [0,2]
cells(m, 0 0, 1 2)
// output
[4,7]

// obtain the elements on the diagonal of the matrix
index = 0..2
cells(m, index, index)
// output
[1, 5, 9]