section 3 editing

1 files changed, 1 insertions, 1 deletions

diff --git a/Fourier Series.page b/Fourier Series.page
index 4b9ea43..2c97d0d 100644
--- a/Fourier Series.page
+++ b/Fourier Series.page
@@ -140,7 +140,7 @@ In any vector space, the inner product of a vector and its basis vector gives th
 
 [Graph of a vector](/vector.gif)
 
-The above vector $\vec v$ can be expressed in terms of the basis vectors $\vec e1$ and $\vec e2$ as follows:
+The above vector $\vec v$ can be expressed in terms of the basis vectors $\vec e_1$ and $\vec e_2$ as follows:
 $$
 \begin{array}{ccl}
 \vec v & = & a_1 \, \vec e_1 + a_2 \, \vec e_2\\