MuPAD-FAQ-LICENSE

## About MuPAD license

MuPAD is not public domain, but it is free devoted to the scientific community and freely distributed for non-commercial use. The MuPAD license (fill-in form) allows us to have an overview over MuPAD's users and their interests. The license is free of charge!

MuPAD is available via anonymous FTP on serveral ftp sites. Those versions are limited in their memory access, so they cannot be used to solve real hard problems. After sending your license agreement, you get a registration code which unlocks all memory limitations.

Please also refer to the documents README and FACTSHEET. ASCII versions of both documents are also available via ftp.

### How to validate your MuPAD version

After you received your license key from MuPAD-distribution@uni-paderborn.de, simply start mupad or xmupad and type:

            register( "code_name", "code" );

where `code_name` and `code` are taken from the MuPAD license agreement. Users of MuPAD 1.2 can use their former code_name and code. On Macintosh systems you can also choose an registration menu entry that is more comfortable.

### Your registration code does not work ?

##### Possible error messages

- `Illegal argument`
  You have to enclose the code_name and the code in " (quotes).
- `Wrong password or not registrated user`
  You possibly misspelled the code_name or code. Make sure that there are no leading or trailing blanks.
- `Can't cancel memory limitation`
  You are not allowed to write into the MuPAD root directory. You must have write permission.

##### Other user errors

- If your registration code contains a blank character, then you have to insert it.
- If your registration code contains a special character, then try to insert the charater
  '\' (back-slash) in front of it.
- Maybe you inserted the character 'l' instead of the number '1' (one) or the character 'O' instead of the number '0' (zero).
- Maybe you inserted the number '1' (one) instead of the character 'l' or the number '0' (zero) instead of the character 'O'.