Last Updated 18 Nov 2009. Error found by Chris Wu Page 281 line 4: should be (-2,-1.5,-1,-0.5,0,0.5,1,1.5) (the value -1 is missing). ------ Error found by Joseph North Page 449 reference Lagrange (1877): ``Le\c cons \'El\'ementaires Sur Les Math\'ematiques, Don\'ees \`a l'Ecole Normale en 1795,'' should be ``Le\c cons \'El\'ementaires Sur Les Math\'ematiques, Donn\'ees \`a l'Ecole Normale en 1795,'' ------ Error found by Tom Williams Page 160: Matrix B in the large display equation in paragraph -3 should include a factor of 1/60. --------- errata \e'rat-e\ n a: a list of corrigenda corrigendum \kor-e'jen-dem\ n a: an error in a printed work discovered after printing and shown with its correction on a separate sheet