| Abbreviation | Definition |
|---|---|
| NFC | Normalization Form C |
| NFD | Norm Form Diophantine equation |
| NG | Non-Gaussian |
| NI | Negative Infimum |
| NI | Non-Inversed |
| NI | Number of Inhomogeneities |
| NI | Number of Intervals |
| NINT | Nearest Integer |
| NIP | No Independence Property |
| NIP | Number of Integration Points |
| NIS | Nationwide Inpatient Sample |
| NIS | Numerical Integration Subroutine |
| NISZK | Non- Interactive Statistical Zero Knowledge |
| NJHS | National Junior Honors Society |
| NL | Negative Large |
| NL | Non Linear |
| NLAA | Numerical Linear Algebra with Applications |
| NLP | No Logic Please |
| NLP | Non-Linear Programming |
| NLSC | Not Locally Strictly Convex |