Update app.py

app.py

@@ -48,6 +48,7 @@ def clean_latex(latex):
         latex += '=0'
     latex = latex.replace('pi', '3.1416')
     latex = latex.replace('e', '2.7183')
+    latex = latex.replace('E', '2.7183')
     return latex
 
 # ✅ Tab 2 specific cleaner