Merge pull request #38 from adtzlr/add-divide-by-tensor

Add divide by tensor

tensortrax/__about__.py

@@ -2,4 +2,4 @@
 tensorTRAX: Math on (Hyper-Dual) Tensors with Trailing Axes.
 """
 
-__version__ = "0.2.8"
+__version__ = "0.2.9"

tensortrax/_tensor.py

@@ -127,12 +127,7 @@ def __mul__(self, B):
 
     def __truediv__(self, B):
         A = self
-        if isinstance(B, Tensor):
-            raise NotImplementedError("Divide by Tensor is not supported.")
-        else:
-            return Tensor(
-                x=f(A) / B, δx=δ(A) / B, Δx=Δ(A) / B, Δδx=Δδ(A) / B, ntrax=A.ntrax
-            )
+        return A * B**-1
 
     def __rtruediv__(self, B):
         A = self

tests/test_math.py

@@ -25,8 +25,7 @@ def test_math():
 
     assert isinstance(T / F, tr.Tensor)
     assert isinstance(F / T, tr.Tensor)
-    with pytest.raises(NotImplementedError):
-        T / T
+    assert isinstance(T / T, tr.Tensor)
 
     assert isinstance(T + F, tr.Tensor)
     assert isinstance(F + T, tr.Tensor)