Boas' Botches ... and there ain't many!

Mathematical Methods in the Physical Sciences
Third Edition
Mary L. Boas
Wiley 2006.

• P. 168, Eq. 12.31: change y to z in both column matrices.
• P. 567, Problem 1: change P_l(l)=1 to P_l(1)=1 (i.e., change the argument of the polynomial to the number one, instead of the lower-case version of the letter L).
• P. 568, Eq. 4.1: change 2¹ to 2^l in the denominator (i.e., change "two raised to the first power" to "two raised to the l^th (lower-case version of L) power").