Thanks for the complete reply, acer.
I'm puzzled: I see now that what I wrote is not what I see, so I'll try to fix that so that you can see what I mean. I tried to use the same fixed font that you used (I copied yours), but when it is desplayed, the fixed formatting is gone. I see the pre and /pre tags...all right, I give up! Why does it look one way in the editor and another in the forum? How do I get fixed font? I selected the text I want to change, and applied Formatted from the Format dropdown box. OK, I finally hacked it, but I can't believe that all that work is necessary. I gotta be missing something...
1. I found that I got different results each time I ran the document and changed things, which is why I was confused. If I do as you suggest and load Units:-Standard package, then I get consistent results, so that will be my habit in the future.
2. By "a value included in the numerator," I mean that I am getting a results the puts 19.6*kg*m in the numerator and s^2 in the denominator. This is what I see:Units[Natural][`*`](Units[Natural][`*`](Units[Natural][`*`](19.6, kg), m), Units[Natural][`/`](Units[Natural][`^`](s, 2))). I expected to see the number followed by a fraction that contains units in the numerator and denominator, not a result that included a number AND units in the denominator, and other units in the denominator.
I see this
19.6 kg m
and expect this
3. I found that this works
but this does not seem to reset m, which is OK as long as the first one works...
> m := 'm':
4. Thanks for clearing up the way restart works.
5. Thanks for the example of separating units and values. Although I may use that, this area of displaying and managing units is one that I expected Maple to fix by V13, inasmuch Maple makes a big deal about units and a professional looking document.
6. I was looking forward to using Maple for document production, but even though it has a most impressive UI and extensive features, its documenting features are behind the curve in some important areas.