# Fourieranalysis : L^2 projection

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1. Oct 12, 2016

### Schwarzschild90

1. The problem statement, all variables and given/known data

2. and 3. Relevant equations and the attempt at a solution
We find the L^2 projection as such: $$<b_j , e_j >$$, where e_j is orthonormal basis j.

Now set $$b_j = < x^2 , e_j >$$ for $$1 \leq j \leq 3$$.

Last edited: Oct 12, 2016
2. Oct 12, 2016

### Ray Vickson

Is there a question in here somewhere?

3. Oct 12, 2016

### Schwarzschild90

Hi Ray. Yes and I've developed my solution much more. It's still not quite correct though.
Will someone help me?