diff --git a/module1/derivative/index.html b/module1/derivative/index.html
index c3e8d356..dffe86a8 100644
--- a/module1/derivative/index.html
+++ b/module1/derivative/index.html
@@ -1920,7 +1920,7 @@ <h2 id="symbolic-derivatives">Symbolic Derivatives<a class="anchor-link" href="#
 
 
 <span class="n">plot_function</span><span class="p">(</span><span class="s2">"f(x) = sin(2x)"</span><span class="p">,</span> <span class="n">f</span><span class="p">)</span>
-<span class="n">plot_function</span><span class="p">(</span><span class="s2">"f'(x) = cos(2x)"</span><span class="p">,</span> <span class="n">d_f</span><span class="p">)</span>
+<span class="n">plot_function</span><span class="p">(</span><span class="s2">"f'(x) = 2 * cos(2x)"</span><span class="p">,</span> <span class="n">d_f</span><span class="p">)</span>
 </pre></div>
 <div class="clipboard-copy-txt" id="cell-3">def f(x):
     return math.sin(2 * x)
@@ -1931,7 +1931,7 @@ <h2 id="symbolic-derivatives">Symbolic Derivatives<a class="anchor-link" href="#
 
 
 plot_function("f(x) = sin(2x)", f)
-plot_function("f'(x) = cos(2x)", d_f)</div>
+plot_function("f'(x) = 2 * cos(2x)", d_f)</div>
 </div>
 </div>
 </div>
@@ -2051,7 +2051,7 @@ <h2 id="symbolic-derivatives">Symbolic Derivatives<a class="anchor-link" href="#
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diff --git a/module2/broadcasting/index.html b/module2/broadcasting/index.html
index db4893ce..4000d7ab 100644
--- a/module2/broadcasting/index.html
+++ b/module2/broadcasting/index.html
@@ -1941,7 +1941,7 @@ <h1 id="broadcasting">Broadcasting<a class="anchor-link" href="#broadcasting">¶
 </div><div class="jp-RenderedHTMLCommon jp-RenderedMarkdown jp-MarkdownOutput" data-mime-type="text/markdown">
 <p>Intuitively, we would like to interpret this expression as the standard
 vector+scalar:
-adding 10 to each position.
+adding 1 to each position.
 However, the above operation will fail because of shape mistach: we are
 adding a tensor of shape(1,) to <code>vector1</code> which has shape (3,).</p>
 </div>
@@ -2006,8 +2006,8 @@ <h1 id="broadcasting">Broadcasting<a class="anchor-link" href="#broadcasting">¶
 <div class="jp-InputArea jp-Cell-inputArea"><div class="jp-InputPrompt jp-InputArea-prompt">
 </div><div class="jp-RenderedHTMLCommon jp-RenderedMarkdown jp-MarkdownOutput" data-mime-type="text/markdown">
 <p><code>Broadcasting</code> is a protocol that allows us to automatically interpret the
-frist expression as implying
-the second one. Inside <code>zip</code>, we pretend that 10 is a vector of
+first expression as implying
+the second one. Inside <code>zip</code>, we pretend that 1 is a vector of
 shape (3,) when zipping it with a vector of shape (3,).
 Again, this is just an interpretation: we never actually create this vector.</p>
 </div>
diff --git a/module2/tensordata/index.html b/module2/tensordata/index.html
index 65b3b95f..91279943 100644
--- a/module2/tensordata/index.html
+++ b/module2/tensordata/index.html
@@ -1953,7 +1953,7 @@ <h2 id="tensor-shapes">Tensor Shapes<a class="anchor-link" href="#tensor-shapes"
 are its
 <code>shape</code> and <code>size</code>. The shape of the above vector is (5,)) and its size
 (i.e. number of squares in the graph) is 5.
-The shape of the above matrix is (4,4) and its size is 20.</p>
+The shape of the above matrix is (5, 4) and its size is 20.</p>
 </div>
 </div>
 </div>