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-rw-r--r--Fourier Series.page4
1 files changed, 2 insertions, 2 deletions
diff --git a/Fourier Series.page b/Fourier Series.page
index fbfbf06..8ef6bd3 100644
--- a/Fourier Series.page
+++ b/Fourier Series.page
@@ -84,8 +84,8 @@ Let f ____ be a continuous, periodic function where I is some the time interval(
$$
\begin{array}{ccl}
-f & = & \sigma e^{inx}\\
-& = & a0 + \sigma a~n\cos nx + \sigma b~n\sin nx\\
+f & = & \Sigma e^{inx}\\
+& = & a0 + \Sigma a~n\cos nx + \Sigma b~n\sin nx\\
\end{array}
$$