diff --git a/game/factorio/phi-cl/creative-tool.html b/game/factorio/phi-cl/creative-tool.html
index 026c9537..db0dff1b 100644
--- a/game/factorio/phi-cl/creative-tool.html
+++ b/game/factorio/phi-cl/creative-tool.html
@@ -2,7 +2,7 @@
 title: 創意測試工具 (Creative Tool)
 description: 
 published: true
-date: 2026-09-02T10:32:32.696Z
+date: 2026-09-02T10:33:48.922Z
 tags: 
 editor: ckeditor
 dateCreated: 2025-12-26T05:51:00.918Z
@@ -209,6 +209,10 @@ dateCreated: 2025-12-26T05:51:00.918Z
         <td style="text-align:center;"><span style="font-family:Arial, Helvetica, sans-serif;"><strong>對數</strong></span><br><span style="font-family:Arial, Helvetica, sans-serif;"><strong>Log</strong></span></td>
         <td style="text-align:center;"><span style="font-family:Arial, Helvetica, sans-serif;"><strong>ln(x)</strong></span><br><span style="font-family:Arial, Helvetica, sans-serif;"><strong>log(x, b)</strong></span></td>
       </tr>
+      <tr>
+        <td style="text-align:center;"><span style="font-family:Arial, Helvetica, sans-serif;"><strong>圓周率</strong></span><br><span style="font-family:Arial, Helvetica, sans-serif;"><strong>Pi</strong></span></td>
+        <td style="text-align:center;"><span style="font-family:Arial, Helvetica, sans-serif;"><strong>pi()</strong></span></td>
+      </tr>
       <tr>
         <td style="text-align:center;"><span style="font-family:Arial, Helvetica, sans-serif;"><strong>湊整</strong></span><br><span style="font-family:Arial, Helvetica, sans-serif;"><strong>Rounding</strong></span></td>
         <td style="text-align:center;"><span style="font-family:Arial, Helvetica, sans-serif;"><strong>floor(x) ceil(x) round(x)</strong></span><br><span style="font-family:Arial, Helvetica, sans-serif;"><strong>trunc(x) sign(x)</strong></span></td>