Update app.py

app.py

@@ -251,7 +251,8 @@ elif selected_function == "問題生成":
                 st.success(f"問題: {problem}")
                 acr = "{"
                 acrE="}"
-                ReProblem =f"sqrt{acr}{s} * ({s} - {side_length}) * ({s} - {side_length}) * ({s} - {side_length}){acrE}"
+                ReProblem =f"sqrt({s} * ({s} - {side_length}) * ({s} - {side_length}) * ({s} - {side_length}))"
+                ReProblem=str(ReProblem)
                 #ReProblem =equation# =# "sqrt({s}*({s}-{side_length})*({s}-{side_length})*({s}-{side_length}))"
                 
             #equation = equation.replace("{sidelength}", str(side_length))