matematikem
Matematikem is the instrumental singular form of the Czech noun matematik, meaning “a mathematician.” The term refers to a person who studies, teaches, or works in mathematics. The base word matematik comes from matematika (mathematics), which traces back to the Greek mathēmatikḗ, through Latin mathematica.
In Czech, matematik is a masculine noun; the feminine form is matematička, with the corresponding instrumental
Usage notes: matematikem is the instrumental singular form and appears in sentences where the noun is in
See also: mathematics, mathematical, matematik (nouns in related languages).