Answers for "add text in latex equation"

latex normal text in equation

usepackage{amsmath}
$...text{normal text}...$

string in equation latex

documentclass{article}

usepackage{amsmath}
begin{document}


abcdef
$text{abcdef} + textrm{abcdef} + textnormal{abcdef} + mathrm{abcdef}$

{sffamily
abcdef
$text{abcdef} + textrm{abcdef} + textnormal{abcdef} + mathrm{abcdef}$
}

end{document}