removed uselss autograd

learning-pytorch/autograd_tutoria.py

@@ -1,8 +0,0 @@
-#!/usr/bin/env python
-import torch
-x = torch.ones(2,2, requires_grad=True)
-print(x)
-
-y = x + 2
-
-print(y.grad_fn)

learning-pytorch/autograd_tutorial.py

@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+import torch
+# x = torch.ones(2,2, requires_grad=True)
+# print(x)
+
+# y = x + 2
+
+# print(y.grad_fn)
+
+# z = y * y * 3
+# out = z.mean()
+# print(z, out)
+
+
+a = torch.randn(2, 2)
+a = ((a*3) / (a-1))
+
+print(a.requires_grad)
+
+a.requires_grad(True)
+
+print(a.requires_grad)
+
+b = (a*a).sum()
+