diff --git a/number_rotation.py b/number_rotation.py
index a68e663..88498d3 100755
--- a/number_rotation.py
+++ b/number_rotation.py
@@ -5,6 +5,7 @@ import jinja2, random, os
 import sys
 import optparse
 from rd_frac import frac
+from pythagore import pythagore_triplet
 
 def randfloat(approx = 1, low = 0, up = 10):
 		""" return a random number between low and up with approx floating points """
@@ -30,6 +31,9 @@ def gaussRandomlist_strInt(mu = 0, sigma = 1, size = 10):
 random.gaussRandomlist_strInt = gaussRandomlist_strInt
 
 random.frac = frac
+random.pythagore = pythagore_triplet
+
+
 
 
 report_renderer = jinja2.Environment(
diff --git a/pythagore.py b/pythagore.py
new file mode 100644
index 0000000..cb11aae
--- /dev/null
+++ b/pythagore.py
@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+# encoding: utf-8
+
+from random import randint
+
+def pythagore_triplet(v_min = 1, v_max = 10):
+    """Random pythagore triplet generator
+
+    :param v_min: minimum in randint
+    :param v_max: max in randint
+    :returns: (a,b,c) such that a^2 + b^2 = c^2
+
+    """
+    u = randint(v_min,v_max)
+    v = randint(v_min,v_max)
+    while v == u:
+        v = randint(v_min,v_max)
+
+    u, v = max(u,v), min(u,v)
+
+    return (u**2-v**2 , 2*u*v, u**2 + v**2)
+
+if __name__ == '__main__':
+    print(pythagore_triplet())
+
+
+
+
+
+# -----------------------------
+# Reglages pour 'vim'
+# vim:set autoindent expandtab tabstop=4 shiftwidth=4:
+# cursor: 16 del