Monthly Archives: February 2009

Wrong number

Is it just me, or does it happen to everyone? When I try to correct someone else’s arithmetic, I can count on making an error of my own. For instance: I was reviewing William Goldbloom Bloch’s clever and provocative book … Continue reading

Posted in computing, mathematics | 14 Comments

Math, fonts, and HTML

In the latest issue of American Scientist I write about the awkward and ugly business of trying to present mathematical typography on the web. All the while I was writing the column, I had constantly in mind the uncomfortable knowledge … Continue reading

Posted in computing, mathematics | 17 Comments

Distant shores

Before I put my toys away, here are two more views of continental divides. First, a broader look at North America, seeing it as more than a bicoastal continent. The southernmost incursion of the Arctic watershed is in the Red … Continue reading

Posted in computing | 11 Comments

If I had a hammer

Since I’m a bit-player rather than a bit-worker, I generally stick to toy-sized problems. However, in recent weeks I’ve been fooling around with multimegabyte elevation maps, and I’ve had trouble scaling up. What I’ve found most challenging is not writing … Continue reading

Posted in computing | 15 Comments

Long division

I’ve been dividing the continent again. Back in the summer of 2000, on a coast-to-coast car trip, I began wondering about the Great Divide, the line that traces the spine of North America, separating the Atlantic and Pacific watersheds. How … Continue reading

Posted in books, computing | 23 Comments