| Abbreviation | Definition |
|---|---|
| LSA | left symmetric algebra |
| LSD | least significant difference (refers to statistical test) |
| LSF | Least Squares Fit |
| LSI | Legal Secretaries Incorporated |
| LSM | Least Squares Method |
| LSMS | LUMS Students Mathematics Society |
| LSP | Liskov Substitution Principle |
| LSR | Linear Spatial Reference |
| LT | Leading Term |
| LTE | Lifting The Exponent |
| LTI | Linear Time Invariant |
| LTM | Linear Topic Map Notation |
| LTS | Least Trimmed Squares |
| LTWE | Linearly Transformed Wave Equation |
| LUADI | Lower/Upper Alternating Direction Implicit (algorithm) |
| LV | Long Vector |
| LVI | Fifty- Six (Roman Numerals) |
| LVX | Least Variable Zone |
| LVZ | Least Variable Zone |
| LWR | Locally Weighted Regression |