discriminant
US /dɪˈskrɪm.ɪ.nənt/
UK /dɪˈskrɪm.ɪ.nənt/
名词
判别式
In mathematics, an expression that determines the nature of the roots of a polynomial equation, especially a quadratic equation.
示例:
•
The discriminant of a quadratic equation ax² + bx + c = 0 is b² - 4ac.
二次方程 ax² + bx + c = 0 的判别式是 b² - 4ac。
•
A positive discriminant indicates two distinct real roots.
正判别式表示有两个不同的实根。
形容词
区分性的, 有辨别力的
serving to distinguish or differentiate
示例:
•
The ability to speak multiple languages is a highly discriminant factor in this job application.
掌握多种语言的能力是这份工作申请中一个高度区分性的因素。
•
The new test provides a more discriminant measure of cognitive ability.
新测试提供了对认知能力更具区分性的衡量。