matlab sort 2 columns: column 1 descending and column 2 ascending

Question

I have a 3 column array like this:

A = [6 -1 0;
     6  0 3;
     1  4 3;
     1  2 5];

I need the first column to be in descending order and

Answer 1

If you're looking to keep the rows intact as records, and sort them based on column 1 and then column 2, use sortrows(), with negative column indexes to indicate columns whose values are to be sorted in descending order.

B = sortrows(A, [-1 2])