- #1
Petar Mali
- 290
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[tex]\Delta\psi(\vec{r},t)-\frac{1}{\upsilon^2}\frac{\partial^2\psi(\vec{r},t)}{\partial t^2}=-g(\vec{r},t)[/tex]
How to get solution
[tex]\psi(\vec{r},t)=\frac{1}{r}F_1(t-\frac{r}{\upsilon})[/tex]
where [tex]F_1[/tex] is any function of argument [tex]t-\frac{r}{\upsilon}[/tex].
How to get solution
[tex]\psi(\vec{r},t)=\frac{1}{r}F_1(t-\frac{r}{\upsilon})[/tex]
where [tex]F_1[/tex] is any function of argument [tex]t-\frac{r}{\upsilon}[/tex].