- #1
gamma-ray-burst
- 13
- 0
Homework Statement
f(x,y) a function of two variables.
x = 2u
y = u-3v
Using a change of variables, transform the equation (d²f/dx²) + (df/dy) = 0
into the coordinates system {u,v}.
Homework Equations
We have kind of a replacement teacher for the session and it is his first time giving the course. He almost doesn't give examples and well he's pretty bad :( The problem is that the exams and homeworks are the same for every group, so whenever we get an homework much of what is in it is mostly unknown to us (questions made by the other teachers of the other groups).
So anyways, I'll stop moaning. I quite don't understand what I have to do. If someone could just point me in some direction, I'd be glad.
The Attempt at a Solution
Should I do the partial derivatives? Where do I use the change of variables?
Oyoyoy.
Last edited: