| Abbreviation | Definition |
|---|---|
| LX | Sixty ( Roman Numerals) |
| LXI | Sixty-One (Roman Numeral) |
| LXIV | Roman Numeral 44 |
| LXV | Sixty-Five ( Roman Numerals) |
| LXVII | Roman numerals for 67 |
| LXW | Length Times Width |
| LXX | Seventy ( Roman Numerals) |
| LXXI | Seventy-One ( Roman Numerals) |
| LY | Lehman/Yao |
| LYM | Learn Your Maths |
| M | Manifold |
| M | Markovian |
| M | Maximum |
| M | Method |
| M. | The Mean of a .... |
| MA | Maximum Adjacency |
| MA | Moving Average |
| MAA | Mathematical Association of America |
| MACD | Moving Average Convergence and Divergence |
| MACE | Models And Counter Examples |