Creationists, what is the formula for calculating a comoving distance and who came up with it?

Or are only people who accept evolution expected to Google irrelevant information to answer flippant questions?

http://answers.yahoo.com/question/index;_ylt=AscXY96sRCA_pk87f4OAm8_sy6IX?qid=20070827125612AAuyBf4&show=7