COVARIANT

Co‐va″ri‐ant (k?–v?″r?–a>nt), n. (Higher Alg.) A function involving the coefficients and the variables of a quantic, and such that when the quantic is lineally transformed the same function of the new variables and coefficients shall be equal to the old function multiplied by a factor. An invariant is a like function involving only the coefficients of the quantic.