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Keep summation sign in fraction
Accepted answer
3 votes

The following should work: \[ \frac{\sum_{1}^{d_i} P(W_i|T_k) }{\sum_{1}^{k}\sum_{1}^{d_i} P(W_i|T_k)}\]

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how do i write this letter on latex (showed in picture)
2 votes

Here it is, using the accent package: \documentclass{minimal} \usepackage{accents} \begin{document} $\underaccent{\tilde}{\mathcal{A}}$ \end{document}

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I cannot write the '@'symbol
1 votes

Does this compile what you want? \documentclass{article} \usepackage{listings} \begin{document} \begin{lstlisting} @some text some text \end{lstlisting} \end{document}

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R programming language symbol
1 votes

Another idea is to use the fontsawesome5 package with \faRProject. A minimal example should be: \documentclass{article} \usepackage{fontawesome5} \begin{document} \faRProject \end{document} This ...

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