APM346-2022S > Chapter 2

Text Book 2.4 Example 2.1

(1/1)

**Yifei Hu**:

In this problem, $-1 < t < -\infty$, when applying D' Alembert's formula, why we integrate from 0 to t instead of from -1 to t?

Thanks in advance!

**Victor Ivrii**:

We integrate from $t=0$ because for $t=0$ initial conditions are done. $-1<t $ is a domain where $f(x,t)$ is defined

Navigation

[0] Message Index

Go to full version