Helly Number
Given a Euclidean 
-space,
See also Euclidean Space, Helly's Theorem
- Martingale
- Mascheroni Constant
- Mascheroni Construction
- Maschke's Theorem
- Mason's abc Theorem
- Mason's Theorem
- Masser-Gramain Constant
- Match Problem
- Matchstick Graph
- Mathematical Induction
- Mathematics
- Mathematics Prizes
- Mathieu Differential Equation
- Mathieu Function
- Mathieu Groups
- Matrix
- Matrix Addition
- Matrix Decomposition Theorem
- Matrix Diagonalization
- Matrix Direct Product
- Matrix Equality
- Matrix Equation
- Matrix Exponential
- Matrix Group
- Matrix Inverse