# Partial Differential Equation(NEED HELP)

Char. Limit
Gold Member
No problem at all.

Hey char.limit I have another question which is posing a few problems.

Given the following pde:

du/dt = y^2 d^2u/dx^2

where t> 0 0<x<L

where L is 4000 and Y^2 = HK/phi

if t=0 is the time when river flow is altered, write down an initial condition for u.

Again bit unsure where to start on this one.