如何获得左上坐标在圆周圆的坐标是已知的？
How to get top left coordinate when the coordinate on circumference of circle is known?
昨天查了数学书：截距一定是正的，它是某一轴上坐标的绝对值。
Distance:The length or numerical value of a straight line or curve.
最后给出了由实物上点的空间坐标，求出它在轴测图上坐标的解析式。
Finally, from the discussion are derived the analytical formulas, by which the coordinates of points on the axonometric drawing can be calculated with known coordinates of points on the body.
视图拥有位置，表现为一对左和上坐标，以及两个尺寸，表现为宽度和高度。
A view has a location, expressed as a pair of left and top coordinates, and two dimensions, expressed as a width and a height.
得到了欧氏空间中，单位球面上坐标函数关于某一特定标架场的协变微分的两个等式。
We obtain two formulas about the covariant derivative of the coordinate functions on the unit sphere in Eucdidean space.
得到了欧氏空间中，单位球面上坐标函数关于某一特定标架场的协变微分的两个等式。
We obtain two formulas about the covariant derivative of the coordinate functions on the unit sphere in Eucdidean space.
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