| Abbreviation | Definition |
|---|---|
| IF | Inverse Filtered |
| IF | Inverse Fourier |
| IFAM | Institute for Financial and Actuarial Mathematics |
| IFFT | Inverse Fast Fourier Transform |
| IFS | Iterated Function Series |
| IFS | Iterated Function System |
| IFS | Iterative Function System |
| IG | Inconsistency Graph |
| IG | Integration Grid |
| IGR | Inter-Quartile Range |
| IHDF | Improved Heterogeneous Distance Function |
| II | Roman Number 2 |
| IID | Independent and Identically Distributed |
| III | Roman Number 3 |
| IIS | Irreducible Infeasible Subsystem |
| IJAC | International Journal of Algebra and Computation |
| IJAM | International Journal of Applied Mathematics |
| IJMC | International Journal of Mathematics and Computation |
| IJMC | International Journal of Mathematics Computations |
| IJMR | International Journal of Mathematics Research |