ch4

HuyenNguyenHelen · Apr 25, 2022 · a4e253a · a4e253a
1 parent 7b4422a
commit a4e253a
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/04_mnist_basics.ipynb b/04_mnist_basics.ipynb
@@ -3887,7 +3887,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Now let's see what the change in accuracy is for a small change in one of the weights:"
+    "Now let's see what the change in accuracy is for a small change in one of the weights (note that we have to ask PyTorch not to calculate gradients as we do this, which is what `with torch.no_grad()` is doing here):"
    ]
   },
   {
@@ -3896,7 +3896,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "weights[0] *= 1.0001"
+    "with torch.no_grad(): weights[0] *= 1.0001"
    ]
   },
   {