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user 6835
Questions on filtering or selecting data based on certain criteria. This is to be used with primary tags such as list-manipulation, string-manipulation or signal-processing, with the primary tag indicating the specific use case.
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Cases do not pick up Sqrt?
I'm trying to understand how Cases work in Mathematica, and I'm a bit curios why i't wont pick up the Sqrt function?
Consider the following expressions
Cases[Erfc[b], _Erfc, Infinity]
Cases[a*Erfc[b], …
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