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Latest news 2021-09-06: new blog post "Legacy Documents and TeX Live Docker Images".

B.8 Display math should end with $$

You may have a dollar sign ($) in a displayed maths environment, such as the equation environment. Remember that $ is short hand for \begin{math} or \end{math}, so you can't end one of the other environments with a $. (This error message is in fact a bit confusing, as it seems to be suggesting that you end a displayed maths environment with $$ which you also shouldn't do[Why use \[...\] in place of $$...$$].)


This book is also available as A4 PDF or 12.8cm x 9.6cm PDF or paperback (ISBN 978-1-909440-00-5).

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