For personal users, purchasing the Personal Edition is sufficient, though this version has limitations on the maximum number of elements in finite element models. For commercial use, please purchase the Commercial Edition, which has no restrictions.

Please follow the tutorial below to purchase a license and authorize your computer: 1. Select the license type, fill in the relevant information, and click the "Purchase the above license" button; 2. Confirm the order information, then use WeChat to scan the QR code in the image and pay the bill; 3. Use the DAuthorize command and enter the order number to authorize your computer.