X-Git-Url: https://svn.cri.ensmp.fr/git/linpy.git/blobdiff_plain/9de8ee74599e94260da37ce8349ac04cc3ae89c3..17f12d8f63d696f09dbb44be3dc24b9aba7b88d3:/pypol/domains.py

diff --git a/pypol/domains.py b/pypol/domains.py
index fdb0ab0..2fbd544 100644
--- a/pypol/domains.py
+++ b/pypol/domains.py
@@ -301,6 +301,11 @@ class Domain:
             points.append(point)
         return points
 
+    def subs(self, symbol, expression=None):
+        polyhedra = [polyhedron.subs(symbol, expression)
+            for polyhedron in self.polyhedra]
+        return Domain(*polyhedra)
+
     @classmethod
     def _fromislset(cls, islset, symbols):
         from .polyhedra import Polyhedron
@@ -323,6 +328,7 @@ class Domain:
             self._dimension = len(self._symbols)
             return self
 
+    @classmethod
     def _toislset(cls, polyhedra, symbols):
         polyhedron = polyhedra[0]
         islbset = polyhedron._toislbasicset(polyhedron.equalities,