2
votes
1answer
335 views

\xrightarrow: position of text over an arrow should be lower

The following example of LaTeX code \documentclass[b4paper,oneside, final, 10pt]{article} \usepackage[english]{babel} \usepackage{charter} \usepackage{amsfonts} \usepackage{mathtools} ...
22
votes
1answer
352 views

is there a “size-independent” method for overlaying two symbols to form a composite?

in this question a composite symbol "diamond plus" is requested for use with plain TeX. a good-looking version was provided, but it works in only one size. if the same symbol is needed for a title or ...
27
votes
3answers
2k views

\subseteq + \circ as a single symbol (“open subset”)

I'm trying to create symbols \opn for "open subset" and \cls "closed subset". I want them to look like this: My current solution is: ...
17
votes
2answers
3k views

Overlay symbol with another

Is it possible to overlay a symbol with another? I want to write an equal sign with a question mark overlayed (or the other way around). Note I don't want \stackrel{?}{=} I want the question ...