diff --git a/presentation/presentation.pdf b/presentation/presentation.pdf
index 8bf5bcb..b86e6e5 100644
Binary files a/presentation/presentation.pdf and b/presentation/presentation.pdf differ
diff --git a/presentation/principal.tex b/presentation/principal.tex
index 26f7af0..055b04d 100644
--- a/presentation/principal.tex
+++ b/presentation/principal.tex
@@ -27,10 +27,10 @@
                         \centering
                         \begin{align*}
                             \begin{pmatrix}
-                                1 & 1 & 1 \\
-                                0 & 0 & 0 \\
+                                1 & 0 & 1 \\
                                 1 & 0 & 0 \\
-                                0 & 0 & 0
+                                1 & 0 & 0 \\
+                                1 & 1 & 0
                             \end{pmatrix}
                         \end{align*}
                         \footnotesize