矢量代数又叫计算几何，是计算理论科学的一个重要分支。
功的定义用到矢量代数的第三种运算，即两个矢量的标积。
The definition of work suggests a third process of vector algebra, namely, scalar multiplication of two vectors.
用矢量代数方法导出了弦步法与弧步法两组公式并作了例算对比。
The two sets of formulas for chord and are methods are derived by using vector algebraic method and some examples are listed for calculating and contrasting.
本文用矢量代数法推导出刀具刀尖安装得较高或较低时工作角度的计算公式。
In this paper, the formulas of working angles of the cutting tool for tool nose locating position changes are derived from vector method.
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