An Iowa State University professor has combined his love of sports and computers to help ease a major headache for the Big-12 Conference. Tim Van Voorhis has written a computer program that helps with Big-12 scheduling for a number of sports.Van Voorhis is currently working on basketball and baseball schedules for the Southeastern Conference and has heard from other leagues as well.Van Voorhis says his program works around parameters set by each league. For instance in football, the Big-12 wants to keep rivalry games at the end of the season and, in basketball, the availability of arenas for the different schools is an issue.Van Voorhis says his computer program gives a conference a number of different options, then officials will choose the one they want.