[Tex/LaTex] Missing } inserted. \end{split}

Question

\begin{equation}
\begin{split}
${\delta _{k + 1}} = {\theta _{k + 1}} - {\theta _k}$ \\
\end{split} 
\end{equation}

I am using TeXstudio to write the equation. I am getting the following error. I am a beginner in latex

Missing } inserted. \end{split}

Where do I have to insert the }?

Answer 1

You have spurious $'s inside split:

\documentclass{article}

\usepackage{amsmath}

\begin{document}


\begin{equation}
\begin{split}
{\delta _{k + 1}} = {\theta _{k + 1}} - {\theta _k} \\
\end{split} 
\end{equation}

\end{document}

BTW: If it is only line inside equation, split is completely unneeded.