I've been grading calculus exams this week, and even though my students did quite well overall there were a couple of errors that I see every semester. Errors that make mathematicians' heads explode.

An equation is a statement with an equals sign, stating that two expressions are equal in value, for example \(3x + 5 = 11\) Solving an equation means finding the value or values for which the two ...

It only makes sense. I did linear regression in google docs and I did it for python. But what if you neither of those? Can you do it by hand? Why yes. Suppose I take the same data from the pylab ...

Sankhyā: The Indian Journal of Statistics, Series B (1960-2002), Vol. 58, No. 3 (Dec., 1996), pp. 338-351 (14 pages) In this paper we develop the theory of linear models using the properties of Linear ...