Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Messages - ziyao hu

Pages: [1]
Chapter 3 / Difference between what we talk about in Chapter 3 & 4
« on: October 19, 2016, 10:54:31 AM »
I'm wondering why in Chapter 4, we need 2 boundary conditions, if we can solve the problem with only 1 b.c. just as the problem 5 in Assignment 5?
Pictures shown as below,

Chapter 2 / Re: HA #4 general
« on: October 18, 2016, 07:05:46 PM »
So what's the meaning of "up to constants that will not affect u(x,t)"

Chapter 2 / HA #4 general
« on: October 17, 2016, 06:15:10 PM »
I saw the solution professor posted last year, as the folloing picture.
Can we just assume constant = 0 and then put one at the end of the solution?

Q3 / Re: Q3
« on: October 17, 2016, 12:49:32 PM »
If the boundary condition was $u|_{x=0}=k(t)$ then there would be no integration, thus no constant and in general no continuity.

Otherwise yes: you need to choose a correct constant but if so, it will be explicitly said so

Does it mean that if the boundary condition was $u|_{x=0}=k(t)$ then there would be in general no continuity. We do not necessarily need to make it continuous.
But in this problem, we need to select constant to make it continuous?

Pages: [1]