Update app.py

app.py

@@ -147,8 +147,16 @@ def render_message(history):
     <script type="text/javascript">
         MathJax = {
             tex: {
-                inlineMath: [['$', '$'], ['\\(', '\\)']],
-                displayMath: [['$$', '$$'], ['\\[', '\\]']]
+                inlineMath: [['\\(', '\\)']],
+                displayMath: [
+                    ['\\[', '\\]'],
+                    ['\\begin{equation}', '\\end{equation}'],
+                    ['\\begin{align}', '\\end{align}'],
+                    ['\\begin{alignat}', '\\end{alignat}'],
+                    ['\\begin{gather}', '\\end{gather}'],
+                    ['\\begin{CD}', '\\end{CD}']
+                ],
+                processEscapes: true
             },
             svg: { fontCache: 'global' }
         };