College freshman Grace Tang never meant to rewrite the rules of love. She came to college to move on from a grief-stricken senior year and to start anew. So she follows a predictable routine: Attend class, study, go home and visit her dad every weekend. She doesn't leave any room in her life for outliers or anomalies. Then, Grace comes up with an algorithm for her statistics class to pair students with their perfect romantic partners. Though some...