Update app.py

app.py

@@ -19,13 +19,27 @@ model = LatexOCR()
 
 # Clean LaTeX output
 def clean_latex(latex):
+    # Replace mathcal X with x
     latex = re.sub(r'\\(cal|mathcal)\s*X', 'x', latex)
+
+    # Remove unwanted characters
     latex = latex.replace('{', '').replace('}', '')
     latex = latex.strip().rstrip(',.')
+    
+    # Replace \pi and the Unicode character π with 3.1416
+    latex = latex.replace(r'\pi', '3.1416')
+    latex = latex.replace('π', '3.1416')
+
+    # Replace standalone 'e' with 2.7183 (not part of other variable names)
+    latex = re.sub(r'(?<![a-zA-Z0-9])e(?![a-zA-Z0-9])', '2.7183', latex)
+
+    # Append =0 if not present
     if '=' not in latex:
         latex += '=0'
+    
     return latex
 
+
 # Main function
 def solve_polynomial(image):
     try: