Update app.py

app.py

@@ -15,6 +15,9 @@ model = LatexOCR()
 
 # Clean LaTeX output
 def clean_latex(latex):
+    # Fix accidental LaTeX escapes like \+ or \=
+    latex = re.sub(r'\\([+\-=])', r'\1', latex)
+
     # Fix common OCR misreads like \chi → x
     replacements = {
         r'\chi': 'x',
@@ -46,6 +49,7 @@ def clean_latex(latex):
     return latex
 
 
+
 # Fallback to external LLM microservice
 def request_llm_fallback(bad_latex, llm_url):
     pre_cleaned = re.sub(