PCTeX Talk

Found it! \langle and \rangle. And they are in the standard TeX fonts supplied with Plain TeX. Apologies for my incapacity to read the manual.

I often use the "less than" and "greater than" symbols for "the group generated by", as in G = <a, b> or G = <a, b : ab = ba> Of course, I enclose the each symbol in curly brackets so that the spacing is correct. The problem is that the symbols are too pointy. I want th...

The command \mho works perfectly. Thank you very much, and apologies for my ignorance. An italic version would be useful. Unfortunately, the mathtools package requires LaTeX, and I am working in plain TeX. It is probably not practical to adapt the package for use outside LaTeX. Do you know of anythi...

Apologies. I forgot to add the further request about harpoon arrows. 3. I also need the four harpoon arrows to be extendable, that is, \leftrightharpoons, \rightleftharpoons, \updownharpoons, \downupharpoons. I expect that that others will want extendable versions of various other arrows. There shou...

I need two things. 1. I need an upside-down capital omega, in straight and in slant. This symbol is standard in group theory, where \UpsideDownOmega_i (P) is the subgroup of a p-group P consisting of the p^i th powers of its elements. to justify its widespread usage, I need only quote Huppert's &quo...