▽ENJOY MATHEMATICS in 3D 3次元で数学しよう ●03/26 23:03 For full functionality of this site it is necessary to enable JavaScript. Here are the instructions how to enable JavaScript in your web browser.
▽GC日記 ●03/30 03:08 Unauthorized This server could not verify that you are authorized to access the document requested. Either you supplied the wrong credentials (e.g., bad password), or your browser doesn’t understand how to supply the credentials required.