trigonometry

英 [ˌtrɪɡəˈnɒmətri]

美 [ˌtrɪɡəˈnɑːmətri]

n.  三角学

BNC.37889 / COCA.29645

牛津词典

noun

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

柯林斯词典

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

英英释义

noun

• the mathematics of triangles and trigonometric functions
  Synonym:trig

双语例句

• 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。
• We may determine the height of a mountain by trigonometry.
  我们可用三角原理测定山的高度。
• I didn't do much trigonometry at school.
  我在学校里没学多少三角学。
• 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。
• 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。
• The optical rangefinder works by an application of trigonometry.
  光学测距器利用三角法工作。
• 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。
• A mathematician specializing in trigonometry.
  专门研究三角法的数学家。
• 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。
• 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。