[ Alt / Ctrl+Alt ] + [ v: paste, c: copy, x: cut, e: clear; PageUp: previous, PageDown: next; Backspace: delete→previous, Delete: delete→next ]
Ctrl+Alt + m: minimize/restore; Alt + Left-click: toggle raw MathML output, Alt + Right-click: copy selection (entire field if none) Ctrl+Alt + Right-click: copy selection HTML

Input containing ASCIIMathML `a/b + dot c` <i>and</i> HTML tags too (linebreaks preserved though). Buttons on the right pastes from, copies to, and cuts to clipboard, as well as clears input (in that order). Clipboard functions might not work in anything but <a href="http://www.microsoft.com/windows/ie/">Internet Explorer</a>. Long button at the top shows/hides this panel to save space. Alt-left-click here to change from displaying equations to "raw" MML tags.