maths: add autocorrelation function#14895
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Description
Adds an autocorrelation function to the maths directory.
Autocorrelation measures the correlation of a signal with a delayed copy of itself. It is widely used in time series analysis, signal processing, and statistics.
Changes
maths/autocorrelation.pywith:autocorrelation(data, lag)functionValueErrorfor invalid lag or zero varianceReferences
Checklist