In many books I have read, when talking about periodic functions, they tend to write the period as $2\omega$. Why do we need the $2$? I haven't come across any working where the factor of $2$ is useful to have. Or is it just convention?
2026-04-01 17:53:22.1775066002
When talking about periods of a function why is it common to introduce a factor of $2$?
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