Update tools/FinalAnswerTool.py

tools/FinalAnswerTool.py

@@ -16,5 +16,10 @@ class FinalAnswerTool(Tool):
     output_type = "string"
 
     def forward(self, answer: str) -> str:
+        answer = re.sub(r'\\boxed\{([^}]+)\}', r'\1', answer)  # \boxed{2} -> 2
+        answer = re.sub(r'[\$\{\}\\]', '', answer)              # Remove other LaTeX symbols
+        answer = re.sub(r'[^A-Za-z0-9,]', ' ', answer)         # Keep letters, digits, commas
+        if not answer:
+            return "NA"
         final_answer = f"FINAL ANSWER: {answer}"
         return final_answer