fix sigmoid definition in tutorial, closes #346

HIPS · Jan 30, 2018 · 25da698 · 25da698
1 parent 02ec605
commit 25da698
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/tutorial.md b/docs/tutorial.md
@@ -50,7 +50,7 @@ import autograd.numpy as np
 from autograd import grad
 
 def sigmoid(x):
-    return 0.5*(np.tanh(x) + 1)
+    return 0.5 * (np.tanh(x / 2.) + 1)
 
 def logistic_predictions(weights, inputs):
     # Outputs probability of a label being true according to logistic model.