Update app.py

app.py

@@ -15,6 +15,11 @@ model = LatexOCR()
 
 # Clean LaTeX output
 def clean_latex(latex):
+    # 🔧 NEW FIX: Remove bad spacing escapes and redundant slashes
+    latex = latex.replace('\\ ', '')             # Remove space escapes
+    latex = latex.replace('\\\\', '\\')          # Reduce double slashes
+    latex = re.sub(r'\\[ \t\n\r\f\v]*', '', latex)  # Remove \ followed by whitespace or control chars
+
     # ✅ Fix invalid LaTeX escapes like \+ \- \=
     latex = re.sub(r'\\([+\-=])', r'\1', latex)
 
@@ -56,6 +61,9 @@ def clean_latex(latex):
     latex = latex.replace(r'\cdot', '*')
     latex = latex.replace('−', '-')  # Replace Unicode minus
 
+    # 🔧 NEW FIX: Final cleanup - remove stray characters if needed
+    latex = re.sub(r'[^\w\s^=+*\-().]', '', latex)
+
     # Ensure it's an equation
     if '=' not in latex:
         latex += '=0'
@@ -64,6 +72,7 @@ def clean_latex(latex):
 
 
 
+
 # Fallback to external LLM microservice
 def request_llm_fallback(bad_latex, llm_url):
     pre_cleaned = re.sub(