| Subject | English | Icelandic |
| comp., MS | array constant | fylkisfasti (A set of constants that is a component of an array formula) |
| comp., MS | array formula | fylkisformúla (A formula that performs multiple calculations on one or more sets of values, and then returns either a single result or multiple results) |
| math. | orthogonal arrays | hornrétt fylki |
| math. | partially balanced arrays | hluta jafnvægi fylki |
| comp., MS | sparse array | dreift fylki (An array (arrangement of items) in which many of the entries are identical, commonly zero. It is not possible to define precisely when an array is sparse, but it is clear that at some point, usually when about one-third of the array consists of identical entries, it becomes worthwhile to redefine the array) |