noun
mathematical formula; numerical expression
Refers to any expression using numbers, symbols, and operators to represent a mathematical relationship or calculation.
この数式を解いてください。
Please solve this mathematical formula.
彼は複雑な数式を簡単に理解する。
He easily understands complex mathematical formulas.
Compound of 数 (すう, 'number') and 式 (しき, 'formula, ceremony'). The combination straightforwardly means 'numerical formula'.