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### Topics - Xi Yue Wang

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##### Website errors / The date for week 12 on Lecture note
« on: November 24, 2015, 03:28:21 PM »
On Lecture note page, the date for week 12 is supposed to be from November 30 to Dec 4?

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##### Textbook errors / section 6.5
« on: November 12, 2015, 03:35:48 PM »
http://www.math.toronto.edu/courses/apm346h1/20159/PDE-textbook/Chapter6/S6.5.html
After equation 6.5.5, for $C_n=\frac{1}{\pi n}a^{1-n}\int_{0}^{2\pi} h(\theta')\sin(n\theta') d\theta$, missing ' for $d\theta$
$C_n=\frac{1}{\pi n}a^{1-n}\int_{0}^{2\pi} h(\theta')\sin(n\theta') d\theta'$

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##### Textbook errors / Missing r in section 6.3
« on: November 12, 2015, 01:31:10 PM »
http://www.math.toronto.edu/courses/apm346h1/20159/PDE-textbook/Chapter6/S6.3.html
For the fifth line, Cartesian coordinates by $x=rcos(Î¸), y=sin(Î¸)$, there should have $r$ before $sin(\theta)$.

OK

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##### Textbook errors / Misprint for 2.4
« on: October 01, 2015, 03:59:03 PM »
Hi Professor,
I think in "2.4 1D Wave equation reloaded:characteristic coordinates", for the last graph, the equation on the right side should be
x' = x + c(t - t').

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