代數學 dàishùxué algebra Origin Definitions Defs Strokes Stroke Words Sentences Sents 交换代数学 jiāohuàndàishùxué commutative algebra (math.) commutative algebra代数学基本定理 dàishùxuéjīběndìnglǐ fundamental theorem of algebra the theorem stating that every non-constant single-variable polynomial with complex coefficients has at least one complex root