How+to+Draw+a+Perfect+Circle+and+More

// Mathemusician Vihart has become a YouTube sensation with her math doodle and music videos. Check out a few of them below. // // How to Draw a Perfect Circle // media type="youtube" key="QncgmzH6yQU?version=3" height="480" width="853"

// Doodling in Math Class: Infinity Elephants // media type="youtube" key="DK5Z709J2eo" height="360" width="640"

// Doodle Music // media type="youtube" key="Av_Us6xHkUc" height="360" width="640"