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| -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 cbda2c8..8e0732c 100644 --- a/Fourier Series.page +++ b/Fourier Series.page @@ -6,9 +6,9 @@ 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: - $1. \cos(2x) = 1 - 2 \sin^2(x)$ + $1. \cos(2x) = 1 - 2 \sin^2(x) \therefore \sin^2(x) = 1/2 - \cos(2x)/2 - +$ ##What is the Fourier series actually?</b> |