Vector approach to spherical trigonometry.
球面三角学向量法。
He also did work relating to spherical trigonometry.
郭守敬还做了与球面三角有关的工作。
Until about 1450 spherical trigonometry consisted of loose rules based on Greek, Hindu and Arabic versions.
差不多直到1450年球面三角的内容由一些不严谨的法则组成，这此法则的基础是希腊、印度和阿拉伯译本。
Students may be confronted with difficulties in the application of complicated formulae of Spherical Trigonometry.
球面三角公式繁杂，学生在实际运用时感到困难。
The mathematical models of the dynamic target and the tested apparatus are constructed with spherical trigonometry spherics.
运用球面三角学，建立了动态靶标与被测仪器间的数学模型；
The forward and inverse position kinematics solutions of the mechanism and corresponding numerical examples are given based on spherical trigonometry.
得到了机构的位置正反解，绘制了机构在进行基本康复运动时的驱动副输入曲线图；
Shenton's critics, it should be pointed out, can fall back on spherical trigonometry and astronomical observations that date right back to Aristotle in 330bc.
有必要说明一下，早在公元前300年的亚里士多德时期，那时的球面三角学和天文观测结果就批驳了珊顿的地平论观点。
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。
By means of spherical graphics and plane trigonometry, space angle and space point coodinates are calcullated for three sets of combined fixtures as examples.
运用球面图法及平面三角法，计算了三种组合夹具实例的空间角度及空间点的坐标。
By means of spherical graphics and plane trigonometry, space angle and space point coodinates are calcullated for three sets of combined fixtures as examples.
运用球面图法及平面三角法，计算了三种组合夹具实例的空间角度及空间点的坐标。
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