haskell-lectures/VL2/content/VL2_rec_patterns.tex

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Since we use lists a lot in haskell, we also want some more powerful functions to deal with them. E.g.:
\begin{itemize}
\item perform an operation on every element on a list
\item keep only some elements in the list, following some criteria
\item "summarize" the elements of the list somehow
\item ...
\end{itemize}
\pause
How do we do that?