我也可以用∂,但因为是单变量函数的缘故。
Well, the answer is I could put curly d's if I wanted, but I end up with a function of a single variable.
当然，就像单变量的函数一样，我们不需要函数在任意处都有定义。
And, of course, as with functions of one variable, we don't need things to be defined everywhere.
单复变量包含实数和虚数两部分，针对两个实值函数n(x) 和v(x)的表达式为：b(x) = n(x) +iv(x)。
fullprof A complex variable has real and imaginary parts written in the form b(x) = n(x) + iv(x) for two real-valued functions n(x) and v(x)
采用辅助变量辨识方法辨识得到单输入单输出差分方程和Z传递函数。
Through instrumental variable identification method, the single input single output difference equations and the Z transfer function were gotten.
同时基于系统脉冲传递函数，得到单变量PF C控制器的显式表达式。
Based on impulse transfer function, single variable PFC controller is gained.
其根据多普勒雷达径向速度资料的特点，水平方向采用非各向同性的单变量背景场误差协方差函数。
As for the characters of the Doppler Radar radial velocity data, the single variable background error covariance is used. And the anisotropic covariance function is adopted in the horizontal plane.
从预测模型、反馈校正和优化控制三方面对预测函数控制基本原理进行了系统的阐述并针对一阶加纯滞后对象推导了单变量预测函数控制的基本算法。
The principle of PFC is introduced from three aspects: predictive model, error compensation and optimal algorithm. The basic PFC algorithm for first-order plus time delay system is developed.
从预测模型、反馈校正和优化控制三方面对预测函数控制基本原理进行了系统的阐述并针对一阶加纯滞后对象推导了单变量预测函数控制的基本算法。
The principle of PFC is introduced from three aspects: predictive model, error compensation and optimal algorithm. The basic PFC algorithm for first-order plus time delay system is developed.
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