The software is provided for educational and informational purposes only. The user assumes all risks and liabilities associated with the use of the software. The software developer and the website hosting the software are not responsible for any damages or losses resulting from the use of the software.
If you absolutely cannot afford the paid version, you have excellent zero-cost options that are 100% legal and safe. They may not have all the graphical polish of PL 9.0, but they are mathematically accurate. The software is provided for educational and informational
To run version 9.0, your system should meet these minimum specifications: The software is provided for educational and informational