Four important conclusions of deciding functional convexity will be available by converting derivative into differential quotient, derivative and second-order derivative into symmetric derivative and second-order symmetric derivative respectively. “改微为差”,改导数和二阶导数分别为对称导数与二阶对称导数,即可得到判定函数凸性的四个重要结论。
A Discussion about the Concept of Differential Quotient 关于微商概念的推论
This paper proceed from the definition of real number order differential quotient, and gave a new definition from the angle of inverse operation, and formed some relation formula of real number order calculus and regular integers order calculus, and made it more systematic and more perfect. 文章从实数阶导数的定义出发,从逆运算的角度给出了实数阶积分的新定义,并建立了实数阶微积分与正整数阶微积分的一些关系式,使之更加系统和完善。
Measurement Method of Signals of Thermal resistance and Thermocouple by Differential Quotient 热电阻热电偶信号的差商测量方法
This paper elaborates the principle of measuring the signals of thermal resistance and thermocouple by differential quotient, and analyzes the characteristics of its self calibration and self stabilization. Hence this paper provides a new reference method for the measurement of resistance and millivolt. 阐述了热电阻热电偶信号的差商测量原理,分析了差商测量的自标定自稳定特点,从而为电阻和mV信号的测量提供了一种新的参考方法。