diff options
| author | siveshs <siveshs@gmail.com> | 2010-07-02 03:40:34 +0000 |
|---|---|---|
| committer | bnewbold <bnewbold@adelie.robocracy.org> | 2010-07-02 03:40:34 +0000 |
| commit | 75ddf72b7efe601ec7d2f93d19bbf73b0a43a4c3 (patch) | |
| tree | 1134d6f39b397f9d45db445d05914b4920de8fad | |
| parent | b94327a57c53dce7876b20be50d7380b8a702a14 (diff) | |
| download | afterklein-wiki-75ddf72b7efe601ec7d2f93d19bbf73b0a43a4c3.tar.gz afterklein-wiki-75ddf72b7efe601ec7d2f93d19bbf73b0a43a4c3.zip | |
still testing
| -rw-r--r-- | Fourier Series.page | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Fourier Series.page b/Fourier Series.page index fc77e18..0ce4399 100644 --- a/Fourier Series.page +++ b/Fourier Series.page @@ -5,13 +5,13 @@ We first begin with a few basic identities on the size of sets. Show that the se ##Why Fourier series is plausible?</b> To show that Fourier series is plausible, let us consider some arbitrary trignometric functions and see if it is possible to express them as the sum of sines and cosines: -$\qquad\qquad\sin^2(x) = ? $ +$\qquad\sin^2(x) = ?$ Based on the double angle formula, $\cos(2x) = 1 - 2 \sin^2(x)$ Rearranging, -$\sin^2(x) = \frac{1-\cos(2x)}{2}$ +$\qquad\sin^2(x) = \frac{1-\cos(2x)}{2}$ ##What is the Fourier series actually?</b> |