On 2013–10–07 luigi scarso wrote:

> I think a space is needed as in
> $\int _a^b f(x) dx$

Well, that might be a workaround. But it's still a bug.

  %% works
  \math{\int^b_a}

whereas

  %% fails
  \math{\int_a^b}

Furthermore, it used to work for ages using \int_x or \int_{xyz}.

Marco