use tol=-1e16 to represent -inf for grad

CUQI-DTU · Sep 13, 2024 · 8cc4300 · 8cc4300
1 parent 738f79b
commit 8cc4300
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/cuqi/distribution/_uniform.py b/cuqi/distribution/_uniform.py
@@ -46,7 +46,8 @@ def gradient(self, x):
         Computes the gradient of logpdf at the given values of x.
         """
         # x accepts scalar, list, tuple, or ndarray
-        return np.zeros_like(x)
+        tol = -1e16
+        return tol*np.ones_like(x)
 
     def _sample(self,N=1, rng=None):