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Great, thanks David, you put me on the right path. What I needed was: \left\{\begin{array}{l}x+y = z \\ 2x - 3y = yomamma \end{array}\right. The \right. performs the required matching of \left\{ without actually drawing a closing brace. \begin{array}{l} defines a left-justified array, and gets closed with \end{array}. The l (that's a lowercase "L") is ...


It's not clear the layout you want, I offer three possibilities below. Using LaTeX markup to keep it on topic for this site. \documentclass{article} \usepackage{amsmath} \begin{document} \begin{align*} \left\{ x+y = z\right. \\ 2x - 3y = yomamma \end{align*} or \[ \left\{ \begin{aligned} x+y &= z \\ 2x - 3y &= yomamma ...


If the forum have rich text editing and allows images you can use "markdown here". A chrome extension that allows you to write in markdown and then convert it.


I was getting this error too and it appeared to be because I had saved the .Rmd file in a different directory to R's default one. i.e, my default R directory is getwd() "C:/Users/Dave/Documents" When I create and run a .Rmd file from the default directory the maths symbols render fine. However, if I create and save a .Rmd file in a different directory ...

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