cleaning the code-2

rochisha0 · Jul 16, 2024 · e25e006 · e25e006
1 parent 8210e1f
commit e25e006
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/qutip/core/qobj.py b/qutip/core/qobj.py
@@ -822,9 +822,7 @@ def expm(self, dtype: LayerType = _data.Dense) -> Qobj:
         """
         if not self._dims.issquare:
             raise TypeError("expm is only valid for square operators")
-        if isinstance(self.data, (_data.CSR, _data.Dia)):
-            dtype = self.dtype
-        else:
+        if not isinstance(self.data, (_data.CSR, _data.Dia)):
             dtype = None
         return Qobj(_data.expm(self._data, dtype=dtype),
                     dims=self._dims,