Update gaussian_fuzzyset.py

Fix membership method to return standard float type

Author: Shreya123714

fuzzy_logic/gaussian_fuzzyset.py

@@ -60,7 +60,7 @@ def membership(self, member: float) -> float:
 
         membership_value = np.exp(-0.5 * ((member - self.mean) / self.std_dev) ** 2)
         # Directly return for non-complement or return 1 - membership for complement
-        return membership_value if not self.is_complement else 1 - membership_value
+        return float(membership_value) if not self.is_complement else 1 - float(membership_value)
 
     def complement(self) -> GaussianFuzzySet:
         """