diff --git a/Makefile b/Makefile
index bf98298db6cc381f3199aa967f2a6778b176a833..233d6a75d6dee995ac4dc7d97df364638fd732ea 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ HTMLOPTIONS += -t html5
 HTMLOPTIONS += -c css/tufte-css/tufte.css
 HTMLOPTIONS += --self-contained
 
-all: pointeurs_avances.pdf oral.pdf ligne_commande.pdf strings.pdf tests_assertions.pdf make.pdf base_3.pdf base_2.pdf base_1.pdf intro.pdf index.html
+all: delaunay.pdf pointeurs_avances.pdf oral.pdf ligne_commande.pdf strings.pdf tests_assertions.pdf make.pdf base_3.pdf base_2.pdf base_1.pdf intro.pdf index.html
 
 intro.pdf: intro.md metadata.yaml
 	pandoc $(PDFOPTIONS) -o $@ $^
@@ -51,6 +51,9 @@ oral.pdf: oral.md metadata.yaml
 pointeurs_avances.pdf: pointeurs_avances.md metadata.yaml
 	pandoc $(PDFOPTIONS) -o $@ $^
 
+delaunay.pdf: delaunay.md
+	pandoc $(PDFOPTIONS) -o $@ $^
+
 index.html: index.md
 	pandoc -s $(OPTIONS) $(HTMLOPTIONS) -o $@ $<
 
diff --git a/delaunay.md b/delaunay.md
index 9143430c313de86e6f57b2ed8b19a09c707aef51..b2cf86c5d69ad66befb4b2a6e164003d8391692c 100644
--- a/delaunay.md
+++ b/delaunay.md
@@ -156,4 +156,5 @@ void bowyer_watson(point *points, int num_p, vec_triangle *t, int *num_t) {
 $$
 \begin{vmatrix}A_{x}-D_{x}&A_{y}-D_{y}&(A_{x}-D_{x})^{2}+(A_{y}-D_{y})^{2}\\B_{x}-D_{x}&B_{y}-D_{y}&(B_{x}-D_{x})^{2}+(B_{y}-D_{y})^{2}\\C_{x}-D_{x}&C_{y}-D_{y}&(C_{x}-D_{x})^{2}+(C_{y}-D_{y})^{2}\end{vmatrix}>0,
 $$
-où $|.|$ signifie le calcul du déterminant.
\ No newline at end of file
+où $|.|$ signifie le calcul du déterminant.
+* Vous trouverez la fonction pour ce calcul dans l'énoncé du travail pratique.
\ No newline at end of file