Kid is writing “NaN” on his math homework to indicate undefined values. 👍️ Kid is writing “NaN” on his math homework to indicate undefined values. 👍️ Related Posts:I can't remember two things about New 52 Wally West: 1. Did they…As usual, people who claim that social justice values are new to…My dream Flash writing teamParty of family values wants to lock kids in jail without limits.