sine and cosine造句
例句与造句
- We derive the addition formulas for sine and cosine from the arithmetic of complex numbers .
用复数算术推导了正弦，余弦的加法公式。 - The expression for g can be rewritten in terms of trigonometric sines and cosines .
关于g的表达式可以重写成三角函数的正弦和余弦形式。 - On a group of identity of sine and cosine function
余弦函数的一组恒等式 - A high precision direct integration method to solve sine and cosine matrix functions
正余弦矩阵函数的精细积分算法 - Design of the sine and cosine precision reference of high precision excitation power supply with closed loop control
高精度闭环激磁电源正余弦精密基准的设计 - It's difficult to find sine and cosine in a sentence. 用sine and cosine造句挺难的
- Scientific functions are useful for the standard mathematical calculations such as absolute value , sines and cosines , pi , square roots , and so on
科学函数可用于标准数学计算，如：取绝对值、正弦、余弦、 pi 、平方根等等。 - Static members are often used to represent data or calculations that do not change in response to object state ; for instance , a math library might contain static methods for calculating sine and cosine
静态成员通常用于表示不会随对象状态而变化的数据或计算；例如，数学库可能包含用于计算正弦和余弦的静态方法。 - This paper develops iterative formula of sine and cosine function in document [ 40 ] , and presents new pixel - level algorithms for generating archimedes and involute curves which are widely used in engineering
本文推广了文献[ 40 ]中正弦、余弦函数的递推公式，对工程绘图中常用的阿基米德曲线和渐开线设计了新的逐点生成算法。 - Firstly , making out the walking poses and tracks of the robot , according to the study on the humans ’ gait and the sine and cosine curves are used to program its center - of - gravity track and its feet - lifting track . secondly , the kinematics model is established , and according to the constraint and the programmed tracks , the kinematics equations of each walking stages are available . then find the solutions of each equation and get the motion curves of its joints , which are also the motion curves of the mini - servomotor
首先,结合对人类行走步态的研究,规划机器人行走姿态及轨迹;在此基础上建立并求解运动学方程,获得机器人行走时各关节的转角曲线;最后,针对前向运动与侧向运动之间的耦合,对求得的运动曲线进行修正,使机器人在保证稳定的前提下,动作更加流畅。 - The main module of sensorless pmsm vector control such as voltage sensing , current sensing , smo rotor position estimation , speed calculation , generation of sine and cosine , vector coordinate transformation , pi regulators , svpwm vector modulation are all accomplished in the pwm interrupt service routines
永磁同步电机无位置传感器矢量控制的主要模块如电压采样、电流采样、滑模转子位置估算、速度计算、正余弦值生成、矢量坐标变换、比例积分调节器、空间电压矢量脉宽调制等都是在pwm中断服务子程序中完成。 - It builds a relative coordinates based on the jumping - off point of circular interpolation as its origin , caculates the sine and cosine of the angle formed by x axis and the line which connects the origin and the centre of the circle , then gets the coordinates of the centre in the relative coordinates , and enduces a uniform fomula , which is easy to program in computer
摘要用圆弧插补起点作为相对坐标系原点，连接圆弧起点和圆心，求出该连接线和相对坐标x轴的夹角的正余弦值，由此解出圆心在相对坐标系的坐标，并得到一个统一的计算公式，易于计算机编程实现。 - Secondly , the main stuctures of the software and hardware parts of the control system are introduced . principles and realization of the main functional blocks of these two parts are illuminated . on the hardware of the system , parts of control circuit and the design and debugging of peripheral circuits are discussed thoroughly . based on the hardware circuit , the software is programmed with assembly language . dual close loop vector control weth feedback of speed and current are realized . the flow charts of main programme and pwm interrupt service routines are given . the important control strategies of vector control pmsm such as current sensint and scaling , speed sensing and scaling , bector co - ordinate transformation , generation of sine and cosine , pi regulators , svpwm vector modulation and so on are all accomplished in the pwm interrupt sevice routines . in order to unite all the variables in the programme , scaling is used
硬件方面主要论述了控制电路各部分及外围辅助电路的设计和调试。在硬件的基础上，软件采用汇编语言编程，实现了转速和电流双闭环矢量控制。给出了系统主程序和pwm下溢中断处理程序流程图， pmsm矢量控制的主要控制策略如电流采样与定标、速度采样与定标、矢量坐标变换、 sin和cos值生成、 pi调节、 svpwm波形生成等都是在pwm下溢中断服务子程序中完成的。
