From 229bcb5e4f2ab7c82c5d944783af526411907280 Mon Sep 17 00:00:00 2001 From: siveshs Date: Fri, 2 Jul 2010 03:09:08 +0000 Subject: still testing --- Fourier Series.page | 4 ++-- 1 file 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? 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? -- cgit v1.2.3