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-rw-r--r--Fourier Series.page2
1 files changed, 1 insertions, 1 deletions
diff --git a/Fourier Series.page b/Fourier Series.page
index 634ecb1..4e5b610 100644
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@@ -80,7 +80,7 @@ Summing these two functions we get the following:
#What is the Fourier series actually?</b>
Now, to begin proving that the Fourier series is a true fact let us begin with the following hypothesis:
-Let $f \mathbb I \rightarrow \mathbb C$ be a continuous, periodic function where I is some the time interval(period of the function). Then it can be expressed as :
+Let $f : \mathbb I \rightarrow \mathbb C$ be a continuous, periodic function where I is some the time interval(period of the function). Then it can be expressed as :
$$
\begin{array}{ccl}