Well, I can answer one of my own questions.
Paul A. Rubin wrote:
3. I'm using US letter paper (8.5in x 11in) with default margins. Frames are displayed in landscape mode. To get approximately even columns, I thought I would need to specify the first column width to be something akin to 4.5in (assuming one inch margins). By trial and error, I discovered that setting the left column's width to 2.3in gives me an approximately even split. As a mathematician, I am wounded by this. What am I missing?
After re-Reading The Fine Manual, I discovered (mentioned in no fewer than two places) that Beamer is hard-coded for 128mm x 96mm, leaving it to the viewer to expand the images to screen size. Half of 128mm, converted to English units and adjusted for current exchanges rates, is indeed in the vicinity of 2.3in.
My faith in arithmetic, if not my faith in my reading prescription, is restored.
-- Paul
