Calculations in PHP - repost

Hi Currently I have a script that harvests content from various website. I have an algo which scores each sentence in order of importance. Part of the algo is already implemented, but part is not. Your task would be to implement the part that isn't. I will give you full details of algo before i award you the project. Additionally, a few minor edits will be required for current script. This is a great project for someone who enjoys mathematics and calculations. I also need someone who can commit to a deadline and provide daily updates. Thanks