This paper studies two families of codes over Z/sub 4/, MacDonald codes of type /spl alpha/ and type /spl beta/. The torsion code, weight distribution, and Gray image properties are studied. Some interesting optimal binary codes are also obtained. Two nonlinear families of binary codes are obtained via the Gray map.
['Charles J. Colbourn', 'Manish K. Gupta']
On quaternary MacDonald codes