This is a small project that only requires a few mathematical formulas and a php script. Please review the attached document for further information. Please only bid if you understand the requirements and if you are capable of producing a fast optimized script (without bugs) that will not have to be recoded by somebody else at a later date. I can pay up to $40 when the project is complete. It should not take more than a few hours to complete, but I can give you a few days if you are very busy with other projects and if you need more time. If there is anything that you do not understand then you are welcome to contact me via the Personal Message Board with your questions. Thank you.
I think that this is an interesting project and I foresee some interesting challenges. I am confident that I can provide what you want in a timely manner. BTW, nice details!