Merge branch 'main' into fix-2198

Author: Svetlana Karslioglu

beginner_source/basics/optimization_tutorial.py

@@ -160,7 +160,7 @@ def train_loop(dataloader, model, loss_fn, optimizer):
         optimizer.step()
 
         if batch % 100 == 0:
-            loss, current = loss.item(), batch * len(X)
+            loss, current = loss.item(), (batch + 1) * len(X)
             print(f"loss: {loss:>7f}  [{current:>5d}/{size:>5d}]")
 
 

beginner_source/basics/quickstart_tutorial.py

@@ -151,7 +151,7 @@ def train(dataloader, model, loss_fn, optimizer):
         optimizer.step()
 
         if batch % 100 == 0:
-            loss, current = loss.item(), batch * len(X)
+            loss, current = loss.item(), (batch + 1) * len(X)
             print(f"loss: {loss:>7f}  [{current:>5d}/{size:>5d}]")
 
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