Template:Extra Maths

[math]\newcommand{\bigudot}{ \mathchoice{\mathop{\bigcup\mkern-15mu\cdot\mkern5mu}}{\mathop{\bigcup\mkern-13mu\cdot\mkern5mu}}{\mathop{\bigcup\mkern-13mu\cdot\mkern5mu}}{\mathop{\bigcup\mkern-13mu\cdot\mkern5mu}} }[/math][math]\newcommand{\udot}{\cup\mkern-12.5mu\cdot\mkern1mu}[/math][math]\require{AMScd}\newcommand{\d}[1][]{\mathrm{d}^{#1} }[/math] This adds \udot and \bigudot commands.

They look like:

• [ilmath]\udot[/ilmath], [math]\udot[/math] for \udot and
• [ilmath]\bigudot[/ilmath], [math]\bigudot[/math] for \bigudot

Note: [ilmath]\udot[/ilmath] appears not-centered due to sub-pixel problems on desktop/low-DPI displays. I can't see a fix for this