Update app.py

app.py

@@ -33,21 +33,34 @@ plt.rcParams.update({
 
 def show_latex(formula):
     try:
+        # 配置LaTeX渲染参数
+        plt.rcParams.update({
+            "text.usetex": True,                # 启用LaTeX渲染
+            "font.family": "serif",             # 使用衬线字体
+            "font.serif": ["Computer Modern"],  # LaTeX默认字体
+            "axes.labelsize": 24,               # 保持字体大小一致
+        })
+
         # 创建图像
         fig = plt.figure()
         plt.axis("off")
-        plt.text(0.5, 0.5, "\n \n"+f"{remove1(formula)}", 
-                 ha="center", va="center", 
-                 fontsize=24)
+        
+        # 使用LaTeX渲染公式（添加$符号包裹公式）
+        plt.text(0.5, 0.5, f"${remove1(formula)}$", 
+                 ha="center", 
+                 va="center", 
+                 fontsize=24,
+                 math_fontfamily='cm')  # 明确指定数学字体
 
         # 保存到内存缓冲区
         buf = io.BytesIO()
-        plt.savefig(buf, format="png", bbox_inches="tight", dpi=150)
+        plt.savefig(buf, format="png", bbox_inches="tight", pad_inches=0.1, dpi=300)
         plt.close(fig)
         buf.seek(0)
         return Image.open(buf)
     except Exception as e:
-        return show_latex("Sorry, due to the incompatibility of some LaTeX expressions, rendering errors occurred.")
+        # 出错时使用简单文本提示
+        return show_latex(r"\text{Sorry, LaTeX rendering failed. Please check your formula syntax.}")
 
 def search(query,enable_latex):
     output_results = output_collection.get(