diff --git a/examen/figs/.gitignore b/examen/figs/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..9f61f3da3ee771ee698f9609d90792ae23b13679
--- /dev/null
+++ b/examen/figs/.gitignore
@@ -0,0 +1,3 @@
+*.svg
+*.pdf
+*.png
diff --git a/examen/figs/signaux.svg.gpg b/examen/figs/signaux.svg.gpg
new file mode 100644
index 0000000000000000000000000000000000000000..ca5027a95a3a811c145a6182467848e7ff0111e8
Binary files /dev/null and b/examen/figs/signaux.svg.gpg differ