discriminant
US /dɪˈskrɪm.ɪ.nənt/
UK /dɪˈskrɪm.ɪ.nənt/
名詞
判別式
In mathematics, an expression that determines the nature of the roots of a polynomial equation, especially a quadratic equation.
範例:
•
The discriminant of a quadratic equation ax² + bx + c = 0 is b² - 4ac.
二次方程 ax² + bx + c = 0 的判別式是 b² - 4ac。
•
A positive discriminant indicates two distinct real roots.
正判別式表示有兩個不同的實根。
形容詞
區分性的, 有辨別力的
serving to distinguish or differentiate
範例:
•
The ability to speak multiple languages is a highly discriminant factor in this job application.
掌握多種語言的能力是這份工作申請中一個高度區分性的因素。
•
The new test provides a more discriminant measure of cognitive ability.
新測試提供了對認知能力更具區分性的衡量。