Studying the Finite Element Method, I ran into a booklet with some math exercises, Exploratory Examples – for Real Analysis, by J.E. Snow and K.E. Weller, ISBN 0-88385-734-0.
Just for the fun of finally using OOO formulas ;-), I created this OOO calc document for exercise 1.2.
Travaillons sans raisonner, c'est le seul moyen de rendre la vie supportable