From 62bedaba66b0260ddf86a0eade6f43f547251f37 Mon Sep 17 00:00:00 2001
From: Loic Guegan <loic.guegan@mailbox.org>
Date: Thu, 2 Nov 2023 11:34:07 +0100
Subject: [PATCH] Minor changes

---
 source/signal_processing/dft.rst | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/source/signal_processing/dft.rst b/source/signal_processing/dft.rst
index 2212440..99d559b 100644
--- a/source/signal_processing/dft.rst
+++ b/source/signal_processing/dft.rst
@@ -90,6 +90,8 @@ Notice that:
    & sin(2\pi\frac{3}{4}n) = -j
 
 In particular, see how the symmetry of the DFT leads to opposite values.
+In this case, :math:`cos` waves are all 0.
+But opposite values would arise for other :math:`\vec{X}`.
 Plugin in these new values whenever :math:`j` shows up gives the following:
 
 .. math::