# LaTeX Error: \mathrm allowed only in math mode - Overleaf, Online LaTeX Editor - latex normal text in math

## LaTeX/Mathematics - Wikibooks, open books for an open world latex normal text in math

The font type LaTeX uses in math mode is somewhat special since it is optimized for writing mathematical formulas. Letters are printed in italics.

I think we need to differentiate math mode from text mode. . you posted is indeed the best one; after all, the normal case is to enter spaces manually, and every.

Hey there. I'm trying to write out a stoichiometry formula, something like 1 level * 20V/ levels * mV / V. I think I have to be in math.