User talk:Hal0920

Integral
Hal, welcome to Wikipedia! I reverted your recent contributions to integral. The dx versus dx for integrals was resolved a while ago. The consensus of the editors was that the italic version would be used throughout, except for the occasional vector integral. Thanks for contributing, though! Xantharius 20:17, 18 July 2007 (UTC)

About Integral typography
Why is it, then, that it's a standard to make the differential sign upright? If people don't know about it, they wouldn't use it either, even in printed texts... Surely, this can be mentioned in the article somewhere!

Sincerely, --Hal0920 20:52, 18 July 2007 (UTC)


 * I have definitely seen upright "d" and italic "d" in texts. However, I have&mdash;open in front of me, at this very moment&mdash;a copy of Rudin's Principles of Mathematical Analysis, his Real and Complex Analysis, Browder's Mathematical Analysis, Stewart's Calculus, Royden's Real Analysis, Wade's Introduction to Analysis, and Adams' Calculus: A Complete Course, and not one has an upright "d", unfortunately. Since at least the first two, and the last of these references are classics of mathematical analysis, I can only conclude that the upright is not any more standard than italic "d". The consensus of the editors on the article thus far has been on the side of italic "d", and with, it would seem, good reason. But, again, thanks for bringing it up. Perhaps there could be space for a discussion of it. Xantharius 01:26, 19 July 2007 (UTC)