Hello i have a quick question about MA ans scalar the following works: import numpy.ma as MA a0= MA.array(0)/1 a1= MA.array((0,0))/1 but not: import numpy.ma as MA a0= MA.array(0)/0 a1= MA.array((0,0))/0 Is that a bug ? I'm using numpy 1.0.5.dev4958 and also whats in trunk right now (1.1.0.dev5113) C.