2 hour session (#124)
2 hour session (#124)

* 2 hour session
* use math

canonical-ols/my.ubuntu.com,canonical-ols/javan-rhino,canonical-ols/my.ubuntu.com,canonical-ols/javan-rhino,canonical-ols/javan-rhino,canonical-ols/javan-rhino,canonical-ols/my.ubuntu.com