関かん数すう方ほう程てい式しきかんすうほうていしきMeanings1nounfunctional equationA mathematical equation in which the unknown is a function. Used in analysis, number theory, and related fields.コーシーの関かん数すう方ほう程てい式しきは、数すう学がくの解かい析せきでよく扱あつかわ