Hi, David Alan Black wrote: > [1,1].minus([1,1,1]) => [1] > > ? > > If so, you'd have to differentiate the arrays based on size: that's what I did first. But there are problems like [1,2].diff [3,4,5]; here, [1,2] should be returned, not [3,4,5]. The first method I wrote was named diff, and acted accoring to the size; but then the above problem occured. So something like #minus is better and way clearer; one gets subtracted from the other. It's up to the programmer to detect the size. Tobi -- * peace&love. * http://www.pinkjuice.com/