I was converting a program written for Numeric to use masked arrays and I ran into a problem with multiply ... it would appear that there is no 3 argument version for MA? i.e. a = array([1, 2, 3]) multiply(a,a,a) works fine to square the array using Numeric, but i get an exception: TypeError: __call__() takes exactly 3 arguments (4 given) when doing it using MA ... it seems clear that that is the problem, is it an oversight or just as yet unimplemented or am I missing something? thanks! jake