Nassim Nicholas Taleb @nntaleb
@Physical_Prep @Alan_Couzens @avigotsky @DrJLake @PierreSamozino @jb_morin If the thing is linear y1=a x, y2=b x, it is the integral of the absolute difference Abs[(b-a) x]. If same sign, =(b-a)(x2^2-x1^2)/2, otherwise pick {x1,x2,x3} and use absolute. — PolitiTweet.org