used it yesterday to learn how to calculate the linear regression constants all the way from multivariable calc down to converting it into the standard statisti

used it yesterday to learn how to calculate the linear regression constants all the way from multivariable calc down to converting it into the standard statistical form. it hallucinated a few times but i knew enough to ignore that and learn some techniques. all up a fun exercise that i surely would have been stuck on if not for the few insights.