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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 ca5c6c3..be72e2b 100644
--- a/Fourier Series.page
+++ b/Fourier Series.page
@@ -97,7 +97,7 @@ We now proceed to define certain operations on these functions in Hilbert space.
$$
\begin{array}{ccl}
-inner product, (f,g) & = & \int_0^{2\pi} f g dx\\
+inner product, (f,g) & = & \int_0^{2\pi} f g \,dx\\
\mid f \mid ^2 = (f, f) & = & \int_0^{2\pi} f^2 \,dx\\
\end{array}
$$