Hi Lucy,
I am an expert in Fortran 95/2003/2008 programming and have worked on a number of large scale projects that use modern Fortran. As one example, I led the development of a particle transport simulation code called OpenMC: [login to view URL] I would be happy to help you with your math problem and would make sure that the code I produce has lots of comments to explain what I did. If you'd like, I can also help you with future assignments as well.
If it means anything, my Bachelor's degree was in applied mathematics as well! Please let me know if you have any questions about my qualifications. You can check out my LinkedIn profile at [login to view URL]
Also, if you find that my bid is not competitive based on price, please contact me and I would be happy to negotiate a competitive bid.
Best regards,
Paul