Toronto Math Forum
APM3462015F => APM346Misc => Textbook errors => Topic started by: Bruce Wu on November 08, 2015, 12:52:15 AM

http://www.math.toronto.edu/courses/apm346h1/20159/PDEtextbook/Chapter6/S6.4.html#mjxeqneq6.4.12
We are already evaluating $u$ at $r=a$. So after the summation sign it should be $a^n$ instead of $r^n$
Correct