hi,(adsbygoogle = window.adsbygoogle || []).push({});

I have a question showing the 'particle in a box' example of the 1-d schrodinger equation, and given the initial conditions (walls of infinite potential, zero potential inside the box) the time-independent equation reduces to d^2y/dx^2 = -k^2y, where k is a constant - my text just gives me the answer to this equation and I'm wondering whether it's possible to be solved? My mathematics only goes as far as solving simple first-order differential equations so I'm a bit lost here - I assume one seperates the variables to get (1/y)d^2y = (-k^2)dx^2, but what then?

Cheers,

Just some guy

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Second order differential equations

**Physics Forums | Science Articles, Homework Help, Discussion**