- #1

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Why the wave equation is

[tex]\frac{\partial^2 u}{\partial^2 x}=c^2\nabla^2 u[/tex]?

Where does it come from?Thanks.

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- Thread starter coki2000
- Start date

- #1

- 91

- 0

Why the wave equation is

[tex]\frac{\partial^2 u}{\partial^2 x}=c^2\nabla^2 u[/tex]?

Where does it come from?Thanks.

- #2

Integral

Staff Emeritus

Science Advisor

Gold Member

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- 56

Why the wave equation is

[tex]\frac{\partial^2 u}{\partial^2 x}=c^2\nabla^2 u[/tex]?

Where does it come from?Thanks.

For me to consider your relationship the wave equation I would have to change it to:

[tex]\frac{\partial^2 u}{\partial^2 t}=c^2\nabla^2 u[/tex]

The wave equation is probabley derived in every intro to PDE text book.

https://www.amazon.com/dp/0486688895/?tag=pfamazon01-20

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