# I Wave equation

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1. Aug 25, 2016

### AleksanderPhy

Hello!
So if I want to describe dΨ(x)/dt can I use 1D wave equation?

2. Aug 25, 2016

### blue_leaf77

What is $\psi(x)$?

3. Aug 25, 2016

### AleksanderPhy

1D wave function

4. Aug 25, 2016

### blue_leaf77

Then you will describe it using Schroedinger equation, not an arbitrary wave equation. Whether it can be described using 1D space, it depends on the symmetry of the system at hand.