a new family of irrational numbers?
Michael Penn - No Myth
what are special numbers??
Michael Penn - Try
Some geometry behind the Basel problem
This & That
Michael Penn - Walter Reed
A nice suggested differential equation
Integrating the impossible
Michael Penn - This & That
Aimee Mann & Michael Penn - "Two of Us" [Leno 1/21/02]
Michael Penn & Patrick Warren - No Myth [1989]
trigonometry like you've never seen it
an absurd approach to a simple mathematics problem
Michael Penn: Long Way Down (Look What the Cat Drug In) [Historical]
these numbers are "best friends"
International Math Olympiad | 2005 Q4
e^pi vs pi^e using physics!?!
A "cruel" limit for a beginning calculus class