
n. 三角函数
As no trigonometric function in the formula results in easy and accurate calculation result, it is especially suitable for workshop applications.
量块组尺寸计算公式不含三角函数,计算简便、结果精确,特别适合车间现场使用。
At last , the writer joins the contents of plain vector and trigonometric function together , and make further discussion about how to solve the geometrical problems by using plain vector.
最后,笔者对平面向量与三角函数内容衔接,以及用平面向量处理几何问题做了进一步的探讨。
As an approximate method, with the trigonometric function, the ****** pendulum dynamical equation is simplified, and the approximate formula for the period of ****** pendulum movement is presented.
利用三角函数作为一种近似方法,对单摆的动力学方程进行了简化,给出了大角度条件下单摆运动的周期的近似公式。
And connected with construction theory, I design three concrete teaching cases about function, includingfunction, monotony of functionandtrigonometric function of arbitrary angle.
并结合建构主义理论设计了三个具体的函数教学案例:“函数”、“函数的单调性”和“任意角的三角函数”。
After trigonometric function used in simplifying solutions, a ****** algorithm is deduced.
并且利用三角函数知识,将其进行化简,从而得到一种简化算法。
To improve the accuracy of load forecasting, by use of residual error amendment forecasting model based on real number output and fitting residual error by trigonometric function, a fuzzy.
为了提高电力负荷预测技术的水平 ,作者以基于实数输出值的模糊回归分析及用三角函数拟合残差的方法 ,提出了预测电力负荷的模糊线性回归——残差修正预测模型。
A new stimulation technique named combined sine-wave method was designed based on the theory of orthogonality of trigonometric function.
针对实验环境下桥梁节段模型的气动导数辨识,提出了组合正弦激励方法。
The hyperbolic function format of BBM equation has been worked out by means of trigonometric function and Wu algebraic elimination;
利用三角函数法和吴代数消元法求出了BBM方程的双曲函数形式解;
Absrtact: CORDIC(Coordinate Rotation Digital Computer)algorithm is the main method to realize the fast and accurate trigonometric function, and is widely used in modern engineering.
摘 要:CORDIC算法是实现快速精确的正、余弦函数计算的主要方法,在工程实际中有着广泛应用。
Two new algorithms, non impact fast feed interpolation and fast trigonometric function algorithm are presented in this paper.
提出了用于数控系统的无冲击快速进给插补算法及具有广泛应用前景的快速三角函数算法。
According to teaching method of the developing process of knowledge, It has trained students for analytic and flexible ability to revolve around the concepts of inverse trigonometric function.
利用知识发生过程的教学方法,围绕反三角函数的概念,培养学生分析变通能力。
Almost calculator can finish basic arithmetic and root square operation. The science calculator can even process trigonometric function, exponential function and logarithmic function.
一般的计算器都具有四则运算、开方运算等功能,而科学计算器还具有三角函数,指数函数,对数函数等运算功能。
The method based on the cubic B-spline function, beam vibration function (or trigonometric functions) and variation principle.
这个方法是建立在三次样条函数、梁振动函数(或三角函数)及变分原理基础上。
Is a mathematical function that returns the trigonometric cosine of the specified angle, in radians, in the specified expression.
一个数学函数,返回指定表达式中以弧度表示的指定角的三角余弦。
Each kind of wave may use the trigonometric function equation to express.
各种波形曲线均可以用三角函数方程式来表示。
A model of trigonometric function with the amplitude increasing with the time was proposed to simulate the progressive fault current in a transformer progressive short circuit failure.
针对变压器发展性短路故障,提出了用一个幅值随时间增加的三角函数来模拟连续发展的故障电流;
Case stu***s showed that graded optimization could meet fixed boundary requirements with reasonable accuracy and trigonometric function transformation was feasible.
实例研究显示了分级优化策略能以足够的精度满足边值约束,三角函数转换法是可行的。
This paper stu***s the application of identical transformation trigonometric function in indefinite integral, and hopes that it may bring some help to students in this aspect.
文章主要阐述了三角函数恒等变形在不定积分中的应用,有助于学生掌握求不定积分的方法。
Based on the stress partial tensor's trigonometric function answer, the main stress and main direction are established in parsed currency formula, and some special answers and examples are discussed.
在应力偏张量主值三角函数解的基础上,推导了应力空间内主应力和主方向的通用解析解公式。
n.|circular function;[数]三角函数
三角函数(Trigonometric Function) 是指以角度为自变量,以比值为函数值的一类函数。它们是数学中研究三角形和周期性现象的基础工具,核心是直角三角形各边长的比例关系,并扩展至单位圆上的坐标定义。
核心三角函数及其定义:
正弦函数(Sine Function):
余弦函数(Cosine Function):
正切函数(Tangent Function):
余切函数(Cotangent Function):
正割函数(Secant Function):
余割函数(Cosecant Function):
关键特性与应用:
"Trigonometric function"(三角函数)是数学中描述角度与直角三角形边长关系的一类基本函数,广泛应用于几何、物理、工程等领域。以下是详细解释:
基本定义
在直角三角形中,三角函数通过角度θ与边长的比例定义:
单位圆扩展
在单位圆(半径为1的圆)中,三角函数可推广到任意角度(包括负角和超过90°的角):
周期性特征
正弦和余弦函数具有周期性,周期为$2pi$,即:
$$
sin(theta + 2pi) = sintheta
cos(theta + 2pi) = costheta
$$
正切函数的周期为$pi$,即$tan(theta + pi) = tantheta$。
应用领域
图形特性
如果需要更深入的学习,建议参考数学教材或在线课程中的三角函数章节,系统掌握其公式推导与实际应用案例。
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