I'm a relative novice with Lyx, and I can't figure out how to create documents with triple- and quadruple-dots in math formulae.
Here's what I'm facing: I compose an inline eqn, hit Ctrl+L to manually insert LaTeX code, type \dddot <space> k, and then a triple-dot k shows in the editing space. Great. The problem is when I go to create DVI or PDF: the compiler gives me an "Undefined control sequence" error for every instance of the triple-dot k. I cannot figure out why. I already have AMS math and esint packages enabled in Document -> Settings. Not to mention the document I'm writing has dozens of other equations and accents that compile without problem. Can you tell me what I'm missing? -- Daniel Gross gross.danie...@gmail.com