Viète's formulae Say that a cubic z3 + az2 + bz + c has roots α, β, γ so that
Viète's formulae
then, by expanding the RHS and comparing coefficients,
These are Viète's formulae and naturally generalize to higher degree polynomials.
数学辞典收录了4151条数学词条,基本涵盖了常用数学知识及数学英语单词词组的翻译及用法,是数学学习的有利工具。