From 66ad09a31a522f776604025ce08485aa1adb86e2 Mon Sep 17 00:00:00 2001
From: "guillaum.pin" <guillaume.pin@etu.hesge.ch>
Date: Sat, 12 Jun 2021 16:32:59 +0200
Subject: [PATCH] Update exercices/fourier_serie1.md

---
 exercices/fourier_serie1.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/exercices/fourier_serie1.md b/exercices/fourier_serie1.md
index 1d2df73..973ea80 100644
--- a/exercices/fourier_serie1.md
+++ b/exercices/fourier_serie1.md
@@ -216,7 +216,7 @@ Corrigé +.#
 
 En utilisant la formule 
 $$
-f[n]=\sum_{k=0}^{N-1}\hat f[n]e^{2\pi ink/N},
+f[n]=\sum_{k=0}^{N-1}\hat f[k]e^{2\pi ink/N},
 $$
 on peut calculer la TFD de $\hat f=\{2, -1-i, 0, -1+i\}$ avec $N=4$.
 On obtient donc
-- 
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