1. 导函数：derived curve 导函数曲线 | derived function 导函数 | derived statistics 推算统计资料; 派生统计资料

2. 导数：derived envelope 导出包络 | derived function 导数 | derived type filter 导出式滤波器

3. 导来函数：对一赋值的导域 derived field with respect to evaluation | 导来函数 derived function | 高阶导来函数 derived function of higher order

noun

1. the result of mathematical differentiation
the instantaneous change of one quantity relative to another
df(x)/dx

Synonym: derivativedifferential coefficientdifferentialfirst derivative