Dang it, Jim 147, I'm sorry. I pulled that math part out of the post on the grounds that I was thoroughly confused in jumping back and forth with exponential notation on the Windows scientific calculator*. Forget it. I'm going to bed. Maybe things will be more clear in the AM. Saturday mornings are better for that sort of stuff.
Terry, 230RN
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* A lot of people don't know that Windows has a scientific calculator. Go to Start, Programs, Accessories, Calculator. When the four-banger comes up, click on View, and select Scientific.