Add sum to operators

b14a66ba · Philipp Arras · 68e9f355 · b14a66ba
Commit b14a66ba authored Aug 12, 2018 by Philipp Arras
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nifty5/operators/operator.py nifty5/operators/operator.py +5 -0

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--- a/nifty5/operators/operator.py
+++ b/nifty5/operators/operator.py
@@ -52,6 +52,11 @@ class Operator(NiftyMetaBase()):
            return NotImplemented
        return _OpProd(self, x)

+    def __add__(self, x):
+        if not isinstance(x, Operator):
+            return NotImplemented
+        return _OpSum.make([self, x])
+
    def apply(self, x):
        raise NotImplementedError