单词	discriminant
释义	Discriminant The expression b2 − 4ac used when solving Quadratic Equations. It can "discriminate" between the possible types of answer: • when it is positive, we get two Real solutions • when it is zero we get just ONE real solution (both answers are the same) • when it is negative we get a pair of Complex solutions See: Quadratic Equation
随便看	diagonal diagram diameter diamond dice die difference difference of squares difference quotient differential equation differentiation digit digital digital clock or watch digital root dilation dimension dimensions dipyramid directed number direction directrix discount discrete data discriminant

数学辞典收录了1200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。