| Abbreviation | Definition |
|---|---|
| DDMF | Dynamic Dictionary of Mathematical Functions |
| DE | Discrete Exact |
| DEAL | Differential Equations Analysis Library |
| DECA | Decagon- 10 sides Dekameter- 10 meters |
| DECA | Decagon- 10 sides Dekameter- 10 meters |
| deca- | a prefix meaning times 10 |
| deci- | a prefix meaning 1/10th |
| DEF | Definite |
| deg | degree |
| DELI | Difference Estimation for Large Itemset |
| DEM | Distance Estimator Method |
| DENAIT | Intelligent and judge |
| DEPO | Double Even Pass Odd |
| DERD | Delta Encoding via Resemblance Detection |
| DES | Discrete Event Simulation |
| DESM | Department of Education in Science and Mathematics |
| dF | Derivative of F |
| DF | Discriminant Function |
| DF | Dummy Function |
| DFA | Deterministic Finite Automaton |