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**Chapter 3 / Re: 3.1 question 13 typo**

« **on:**March 16, 2020, 10:08:38 AM »

Thanks. Fixed

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92

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

You seem to have a different texbook than posted

95

The error was done before. Now it fixed. Thanks

96

Pst problem or provide a link to it

97

Sometimes, for some functions there are shortcuts, but generally not

98

Fixed. Thanks!

99

Please correct what you typed

100

Your answer is correct ($-\pi i$).

If you see discrepancies, report them

If you see discrepancies, report them

101

Yes, wrong sign in the middle (should be $\drac{1}{2i}=-\dfrac{i}{2}$) but the final result is correct

102

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

In the tsecond/third lines should be $dt$, ..., not $\partial t$,...

104

You cannot use LH out of the box for complex variables. You need to consider $z=re^{i\theta}$ and consider $\bigl|\dfrac{\operatorname{Log}(z)}{z}\bigr|$ ...