In English, a vector is said to have two properties: a length and a direction. The possible directions correspond to half-lines out of the origin (so that, eg, up and down are different directions). ...
What is the etymology of "regression" as in finding the coefficients of polynomials?
This question is for people who know some mathematics. Is it correct to say The sequence is convergent to 0. Normally we say: The sequence converges to 0.