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Quiz 1 / Re: Quiz 1 solution
« Last post by Victor Ivrii on January 29, 2023, 08:22:28 AM »
Yes––as long as you post your variant solution
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Quiz 1 / Quiz 1 solution
« Last post by Yuchen Wu on January 28, 2023, 01:20:50 PM »
Just a quick question, will the quiz solution be posted every week? Thanks.
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Chapter 1 / Re: Ch.1.1 - 8
« Last post by Victor Ivrii on January 23, 2023, 06:41:49 AM »
yes, it is
Please write more legibly. Look how I corrected your previous post
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Chapter 1 / Ch.1.1 - 8
« Last post by Emman Subhani on January 22, 2023, 07:14:01 PM »
Ch.1.1- 8 :xux +yuy + zuz =0

For this question, I see that xux + yuy is Linear Homogenous. However, looking at zuz, I believe that the most precise answer for this question is Linear Homogenous as well right?
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Chapter 1 / Re: Ch.1.2(16)
« Last post by Victor Ivrii on January 22, 2023, 03:32:12 PM »
Part $u$ is also linear and homogeneous$. Thus the correct and precise answer is linear homogeneous.
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Chapter 1 / Ch.1.2(16)
« Last post by Emman Subhani on January 22, 2023, 10:54:52 AM »
$$u_{t} + u_{xxxx} + u=0 \tag{1.2.16}$$
I understand that the first part of the equation ( $u_t +u_{xxxx}$) is definitely Linear Homogenous. However, the $u$ in the last part is confusing me and I am stuck between two answers - linear homogenous or semi linear?

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Quiz 7 / Quiz 7
« Last post by ZiqiWang on May 10, 2022, 05:26:10 PM »
The following is my answer for quiz 7.
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Quiz 6 / Quiz 6 D
« Last post by ZiqiWang on May 10, 2022, 05:08:48 PM »
The following is my answer for quiz 6.
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Quiz 5 / Quiz 5
« Last post by ZiqiWang on May 10, 2022, 05:07:07 PM »
The following is my answer for quiz 5.
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Quiz 4 / Quiz 4 E
« Last post by ZiqiWang on May 10, 2022, 04:56:33 PM »
The following is my sample answer for Quiz 4.
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