# [Tex/LaTex] Numbering equations with letter and number

equationslabelsnumbering

I need all the equations in one of the sections to be numbered as letter (R) and an ascending number (1, 2, 3…). So they look like (R1), (R2), (R3) etc.

I do not want the number of the section/subsection to appear (not like R3.1.1, R3.1.2, R3.2.1 …) but just an ascending number starting from the beginning of the section, for all the rest of the sections I am satisfied with LaTeX default numbering.

Numbering these equations manually is not an option because while I am writing my paper I often change the order of the equations or add/remove equations from the text.

\section{whatever}
\renewcommand\theequation{R\arabic{equation}}
\setcounter{equation}{0}


should do what you want.