Star
In formal geometry, a star is a set of 
Vectors 
, ..., 
which form a fixedcenter in Euclidean 3-Space. In common usage, a star is a Star Polygon (i.e., regularconvex polygon) such as the Pentagram or Hexagram
- Mehler's Hermite Polynomial Formula
- Meijer's G-Function
- Meissel's Formula
- Mellin Transform
- Melnikov-Arnold Integral
- Melodic Series
- MEM
- Memoryless
- Menasco's Theorem
- Menelaus' Theorem
- Menger's n-Arc Theorem
- Menger Sponge
- Menn's Surface
- Mensuration Formula
- Mercator Projection
- Mercator Series
- Mercer's Theorem
- Mergelyan-Wesler Theorem
- Meridian
- Meromorphic
- Mersenne Number
- Mersenne Prime
- Mertens Conjecture
- Mertens Constant
- Mertens Function