the result of mathematical differentiation; the instantaneous change of one quantity relative to another; df(x)/dx
双语例句
The secondary derivative differential pulse polarography was developed for the quantitative determination of chrysophanol in rheum. 建立了中草药大黄中大黄酚的二阶导数差示脉冲极谱定量分析方法。
The calculation precision and speed were promoted by avoiding the numerical integral and differential calculation used in approximating the derivation. 避开了数值积分运算和差分替代导数的近似，提高了计算精度和速度。
The analog computers were designed to solve differential equations. 模拟计算机是被设计解决微分方程的。
Therefore the operator we seek is the differential of a spike. 因此，我们欲求的因子是一个单位脉冲的微分。
