Welcome to PhysicsOverflow! PhysicsOverflow is an open platform for community peer review and graduate-level Physics discussion.
Please help promote PhysicsOverflow ads elsewhere if you like it.
New printer friendly PO pages!
Migration to Bielefeld University was successful!
Please vote for this year's PhysicsOverflow ads!
Please do help out in categorising submissions. Submit a paper to PhysicsOverflow!
... see more
(propose a free ad)
Recent similar question answered twice here
I'm a bit confused by what you mean here. How do you expect to get a wave equation without using PDEs? The wave equation IS a partial differential equation!
There is a nice argument by PG Tait that derives the speed of propagation without calculus. It turns out that arbitrary waveforms will propagate (not only functions). Even knots would propagate. It is in an old Encyclopedia Brittanica. If that is an answer, I could write it up here.
user contributions licensed under cc by-sa 3.0 with attribution required