Example

> a = rand(2,3)*100+rand(2,3)*100j;
> a
 a =
 matrix columns 1 thru 3
            38.7 + 98.8i            66.5 + 51.8i            8.59 + 98.9i
            4.92 + 25.5i            8.85 + 21.7i            33.4 + 49.1i

> format(8);
> a
 a =
 matrix columns 1 thru 2
      38.723569 + 98.787275i      66.502073 + 51.786062i
      4.9153286 + 25.491575i      8.8473302 + 21.728892i

 matrix columns 3 thru 3
      8.5900179 + 98.919052i
      33.449489 + 49.135113i
> format(10,5)
         1
> a
 a =
 matrix columns 1 thru 2
          38.724 + 98.787i          66.502 + 51.786i
          4.9153 + 25.492i          8.8473 + 21.729i

 matrix columns 3 thru 3
            8.59 + 98.919i
          33.449 + 49.135i