| Subject | English | Icelandic |
| comp., MS | array constant | fylkisfasti (A set of constants that is a component of an array formula) |
| comp., MS | conditional compiler constant | skilyrtur þýðandafasti (A Visual Basic identifier that's defined in the host application or by using the Const compiler directive, and used by other compiler directives to determine when or if certain blocks of code are compiled) |
| comp., MS | constant consumption | föst notkun (Specification that the volume or quantity of a component used in a finished item is fixed, regardless of the number of items produced or reported as finished) |
| comp., MS | constant scrap | föst rýrnun (The quantity of a particular component that is expected to be scrapped during production regardless of the number of items produced) |
| stat. | fixed effects constants model | bundið líkan |
| stat. | fixed effects constants model | líkan með bundnum hrifum |
| math. | Goutereau's constant | Goutereau fasti |
| math. | uniformly best constant risk estimator | UBCR metilsins |
| math. | uniformly best constant risk estimator | undantekningarlaust bestu föstu hættu metilsins |