Professor Powell kindly authorized me to distribute the code of his optimization software here. The software is also maintained at CCPForge by Professor Nick Gould and me. If you have problems in downloading, please feel free to contact me. In case of technical questions on the code or the algorithms, you may also contact us and we will do our best to help.
Each package here includes an “email.txt” file. It is an email from Professor Powell giving details of the corresponding software. To use the software, you need a Fortran compiler (e.g., f77, IFORT, GFortran, G95). Makefiles are provided for the usage under Unix, and they might need modifications according to your compiler. Plans are underway to provide MATLAB, Python, and (possibly) C interfaces.
Please notice that Professor Powell released his optimization software with the GNU Lesser General Public License. If you are using a version of the software without the license, please update it. If you are archiving the software somewhere else, please make sure to include the license.
Subroutines by myself
Here are some subroutines by me. They are written in the hope that they will be helpful, but there is no guarantee that they will work properly. They probably call some subroutines that are not provided here. In that case I try to instruct in the comments how to obtain those subroutines.
Numerical linear algebra
Software that I use (and recommend)