# Extension:Math/T167569

## reportEdit

the example string produces a minus which is not in superscript, while it works correctly with numbers before the minus (e.g. 2-)

the example string $\mathrm {HSO_{4}^{-}}$ produces a minus which is not in superscript, while it works correctly with numbers before the minus (e.g. 2-) $\mathrm {SO_{4}^{2-}}$