rovnicemi
Rovnicemi is the instrumental plural form of the Czech feminine noun rovnice, which means equation. The word can refer to a set of equations or, more generally, to the means or instrument used in performing an action when expressed with the preposition s (with). For example, při výpočtech pracujeme s rovnicemi. The singular form is rovnice (nominative) and rovnicí (instrumental), while the plural nominative remains rovnice; the instrumental plural is rovnicemi. In Czech grammar, rovnicemi is commonly cited as a standard instance of the instrumental plural ending for feminine nouns ending in -e.
Etymology-wise, rovnice derives from the adjective rovný (equal) with the noun-forming suffix -nice, yielding a term
Usage and context are primarily mathematical and educational. In texts about algebra, systems of equations, or