Update

1 files changed, 16 insertions, 19 deletions

diff --git a/example.py b/example.py
index 502db98..aa6f787 100755
--- a/example.py
+++ b/example.py
@@ -16,13 +16,7 @@ from src.graph import Graph
 #
 # print(f'L before gradient descent: {L.data}')
 #
-# L.grad = 1.0
-# e.grad = -2.0
-# f.grad = 4.0
-# d.grad = -2.0
-# c.grad = -2.0
-# a.grad = 6.0
-# b.grad = -4.0
+# L.backward()
 #
 # g = Graph(L)
 #
@@ -52,21 +46,24 @@ x2w2 = x2 * w2; x2w2.label = 'x2w2'
 x1w1x2w2 = x1w1 + x2w2; x1w1x2w2.label = 'x1w1 + x2w2'
 
 L = x1w1x2w2 + b; L.label = 'L'
+
 o = L.tanh(); o.label = 'o'
+print(o)
 
-# o.grad = 1.0
-# L.grad = 1 - (o.data ** 2)
-# b.grad = L.grad
-# x1w1x2w2.grad = L.grad
-# x1w1.grad = x1w1x2w2.grad
-# x2w2.grad = x1w1x2w2.grad
-#
-# x1.grad = w1.data * x1w1.grad
-# w1.grad = x1.data * x1w1.grad
-#
-# x2.grad = w2.data * x2w2.grad
-# w2.grad = x2.data * x2w2.grad
+o.zero_grad()
+o.backward()
+
+Graph(o).show()
+
+e = 2 * L
+f = e.exp()
+a = f - 1
+b = f + 1
+print(a, b)
+o = a / b
+print(o)
 
+o.zero_grad()
 o.backward()
 
 Graph(o).show()