91
Chapter 3 / Re: 3.1 question 13 typo
« on: March 16, 2020, 10:08:38 AM »
Thanks. Fixed
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92
Chapter 5 / Re: Section 5.1, 5.2 - ok to consider delta distribution?
« on: March 10, 2020, 08:35:56 AM »
Then you need to explain more or less rigorously, what is $\delta$-distribution and how Fourier transform is defined for it. Yes, online textbook covers this topic and much more than your physics class but in more advanced chapters, we do not cover
94
Chapter 4 / Re: 4.1 typos
« on: March 07, 2020, 08:06:06 AM »
You seem to have a different texbook than posted
95
Chapter 2 / Re: S2.4 online textbook
« on: February 21, 2020, 05:09:16 PM »
The error was done before. Now it fixed. Thanks
96
Chapter 2 / Re: Section 2.6 Problem 2
« on: February 19, 2020, 01:11:02 PM »
Pst problem or provide a link to it
97
Chapter 3 / Re: Section3.2
« on: February 14, 2020, 12:51:46 AM »
Sometimes, for some functions there are shortcuts, but generally not
98
Chapter 2 / Re: 2.2 home assignment question 18
« on: February 12, 2020, 03:12:59 PM »
Fixed. Thanks!
99
Chapter 2 / Re: 2.2 home assignment question 18
« on: February 11, 2020, 07:38:13 AM »
Please correct what you typed
100
Chapter 2 / Re: 2.3 question 3
« on: February 11, 2020, 07:37:38 AM »
Your answer is correct ($-\pi i$).
If you see discrepancies, report them
If you see discrepancies, report them
101
Chapter 2 / Re: 2.3 textbook
« on: February 09, 2020, 06:54:26 PM »
Yes, wrong sign in the middle (should be $\drac{1}{2i}=-\dfrac{i}{2}$) but the final result is correct
102
Chapter 2 / Re: Section 2.6
« on: February 03, 2020, 08:18:07 AM »
Since $u$ is defined for $x<0$ and for $x>0$, you calculate limits from the left ($u|_{x=-0}$) and from the right ($u|_{x=+0}$). This is a standard notation
103
Quiz 2 / Re: Quiz2 TUT5101
« on: January 31, 2020, 10:49:26 PM »
In the tsecond/third lines should be $dt$, ..., not $\partial t$,...
104
Quiz 2 / Re: TUT5101 QUIZ2
« on: January 31, 2020, 09:05:11 AM »
You cannot use LH out of the box for complex variables. You need to consider $z=re^{i\theta}$ and consider $\bigl|\dfrac{\operatorname{Log}(z)}{z}\bigr|$ ...