| Halbmatrix | Nominativ, Singular | nominative case, singular | |
| Halbmatrixe | Genitiv, Singular | genitive case, singular | |
| Halbmatrixen | Dativ, Singular | dative case, singular | |
| Halbmatrix(e)s | Akkusativ, Singular | accusative case, singular | |
| Halbmatrixer | Nominativ, Plural | nominative case, plural | |
| Halbmatrixern | Genitiv, Plural | genitive case, plural | |
| Halbmatrixn | Dativ, Plural | dative case, plural |