This is designed to make statistic operations like finding correlations simpler.<p>From the author:<p>> Huuuge shout out to the amazing @natiwhite for her work on Tesser, especially the statistical folds like variance, covariance, etc.<p><a href="https://twitter.com/aphyr/status/553737990309023744" rel="nofollow">https://twitter.com/aphyr/status/553737990309023744</a>