trigonometry

noun

1. 三角学
   the type of mathematics that deals with the relationship between the sides and angles of triangles

1. 三角学
   Trigonometry is the branch of mathematics that is concerned with calculating the angles of triangles or the lengths of their sides.

1. He received a low mark for trigonometry.
   他的三角学分数很低。
2. We may determine the height of a mountain by trigonometry.
   我们可用三角原理测定山的高度。
3. HotSpot takes advantage of these instructions to speed up trigonometry operations dramatically.
   HotSpot利用这些指令显著加速了三角函数的运算。
4. Although these calculations are nothing more than basic trigonometry and algebra, the formulas are very complicated.
   虽然这些计算无非是最基本的三角形和代数计算，但是所使用的公式非常复杂。
5. My high school offered calculus and trigonometry, chemistry and physics, Spanish, French, and four years of Latin, a range of courses many smaller schools in Arkansas lacked.
   我的高中课程包括微积分、三角函数、化学、物理、西班牙语、法语，还有四年的拉丁语。这一系列课程是阿肯色州许多规模小一些的学校所不开设的。
6. Methods of spherical trigonometry and direction cosine matrix were applied respectively to derive the bracket error, and the two methods had the same error formula and the same calculation results.
   应用球面三角法和方向余弦矩阵法分别推导出双轴陀螺平台的支架误差公式，发现由这两种方法推导出来的公式计算结果是一致的。
7. The Hindus, like the Greeks, regarded trigonometry as a tool for their astronomy.
   印度人和希腊人一样，把三角学当作他们天文学的工具。
8. I never did understand trigonometry, and I still don '; t.
   我一向不懂三角函数，现在仍然不懂。
9. Last time I heard, they don't need to know trigonometry.
   上次我听说，他们用不着知道三角定律。
10. No matter whether you use geometry, trigonometry or calculus, you use the simple rules of arithmetic.
    无论你使用几何学，三角形学或者微积分法，你都用到了简单的算术方法。
11. If our predecessors understood the hadith the way some of us try to understand it, they would have never produced the great scholars who invented algorithms and developed trigonometry.
    如果我们的前辈以我们有些人试着理解的方式来理解这段圣训，他们绝对不会出现发明运算法则和揭示勾股定理的伟大学者。
12. Mathematics, including Pre-Algebra, Geometry, Trigonometry.
    数学，包括学前、代数、几何、三角学。
13. An algorithm used trigonometry to passively locating a moving emitter with direction of arrival ( DOA) and time difference of arrival ( TDOA) of the emitter signal is given.
    提出了一种利用平面解三角，并结合辐射源信号到达方向和脉冲到达时间差对运动辐射源进行单站无源定位的算法。
14. The tangent is an important concept in trigonometry.
    “正切”是三角学中的一个重要概念。
15. The expected background includes algebra, trigonometry, and some familiarity with computers.
    书籍面向有代数以及熟悉计算机等背景的用户。
16. Real Time Measurement of Part Surface Roughness Based on Laser Trigonometry
    基于激光三角法的零件表面粗糙度在线测量
17. Trigonometry helps rotate and move characters, while algebra creates the special effects that make images shine and sparkle.
    三角学帮助旋转和移动人物，代数帮助创作使形象闪闪发光的特效。
18. Topics include the physical laws of fluids and the application of physics and trigonometry to bloodstain pattern analysis.
    课题包含利用流体物理学规律，以及物理学和三角学的应用来对血溅形态进行分析。
19. The3D way is, like I said, easier, but requires some basic math ( especially trigonometry) knowledge.
    3D的途径，正如我所说，更简单。但是需要一些数学（尤其是三角）的知识。
20. The height of the mountain has been determined by trigonometry.
    该山的高度已用三角学测得。
21. Arithmetic, algebra, geometry, and trigonometry are branches of mathematics.
    算术、代数、几何和三角是数学的分科。
22. A mathematician specializing in trigonometry.
    专门研究三角法的数学家。
23. The climax of this work was the development of trigonometry.
    三角术的发展是这项工作的高峰。
24. I didn't do much trigonometry at school.
    我在学校里没学多少三角学。
25. The actual displacement between any two points may be determined by drawing a scale diagram with a ruler and a protractor, or by using simple trigonometry.
    任何两点之间实际的位移可用比例尺和分度器画简图予以判断，或者使用简单的三角学计算之。
26. To measure by using trigonometry. at right angles to the plane of the horizon or a base line.
    用平面直角三角形计算工具测量与水平面或者基准面成直角。
27. Itaccomplishes in seconds what had taken all day using old-fashioned surveying instruments and skill in trigonometry.
    原本采用老办法要一整天才能办成的事情，通过测量仪器和三角法，只需数秒钟。
28. The trigonometry of spherical triangles.
    球面三角形的三角学。
29. For every large time intervals and for stars near to the pole, it is necessary, however, to use the exact formulae of spherical trigonometry.
    对于很长的时间间隔和靠近极星的恒星，必须使用精确的球面三角公式。
30. The optical rangefinder works by an application of trigonometry.
    光学测距器利用三角法工作。

noun

1. the mathematics of triangles and trigonometric functions

   Synonym:    trig