Mathmetician to write an algorithm

I'm looking for a mathmetician who knows php, that can create a backend calculator where the users can input in the data through a website. Once the user inputs all the parameters the calculator will analyse the data and display the answer on the site. The language will be php and it will need to be integrated into the site. I need the code to be heavily commented because I will be modifying the formula. I need the UI intergrated into site and need a backend control panel where I can manipulate the parameters. I will need the backend control panel written from scratch. I do not want something out the box like workpress or anything like that. You must have an advance math background to work on this project. I strongly advise not to bid on this project if you do not. If you need more details feel free to contact me privately.