function test_OpDotBackSlash()
  d0 = %pi
  d2 = [1 2 3 4 ; 5 6 7 8 ; 9 10 11 12 ; 13 14 15 16]
  z0 = d0 + %i * d0
  z2 = d2 + %i * d2
  
  disp(d0.\d0)
  disp(z0.\z0)
  disp(d2.\d0)
  disp(z2.\z0)

  disp(d0.\d2)
  disp(z0.\z2)

  disp(d2.\d2)
  disp(z2.\z2)
  
  disp(d2.\z0)
  disp(z2.\d0)
  
  disp(d0.\z2)
  disp(z0.\d2)
  
  disp(d0.\z0)
  disp(z0.\d0)

  disp(d2.\z2)
  disp(z2.\d2)
  
endfunction