Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

Lehigh researchers create new method that improves consistency between predicted and observed data. An international team of mathematicians led by Lehigh University statistician Taeho Kim has ...

Physics can feel inscrutable to students; this lesson helps them understand a graphing problem by analyzing their own ...

Automated email sequences are sent to users after they take specific actions, such as signing up for an email newsletter or completing a purchase. These perfectly timed and crafted emails may seem ...