> > you shouldn't use \over with latex. With amsmath you would also get a
> \over is supported in LaTeX, to the best of my knowledge (despite all > the ensuing parsing pain). There is no warning without amsmath, and the > output is correct. > And that's good, because surely millions of LaTeX documents use it. -k sure, \over works in latex and tex. But this is no longer enough in a world where sources should be output to more than one format. As the question here shows, the \over syntax is difficult for converters. See also https://tex.stackexchange.com/a/365332/2388 Ulrike