| Quadratmatrix | Nominativ, Singular | nominative case, singular | |
| Quadratmatrixe | Genitiv, Singular | genitive case, singular | |
| Quadratmatrixen | Dativ, Singular | dative case, singular | |
| Quadratmatrix(e)s | Akkusativ, Singular | accusative case, singular | |
| Quadratmatrixer | Nominativ, Plural | nominative case, plural | |
| Quadratmatrixern | Genitiv, Plural | genitive case, plural | |
| Quadratmatrixn | Dativ, Plural | dative case, plural |