Based on the principle of computer vision, this paper presents a matrix algorithm for the coordinate transformation from visual plane to geographical plane.

在计算机视觉原理的基础上，本文提出了一种求取从视平面坐标到实际坐标转换矩阵的算法。

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This article calculated the vertical stiffness matrix of plane frame structures subjected to vertical earthquake action.

计算了平面串并联多质点系结构在竖向地震作用下的竖向刚度矩阵。

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Applying this method, we can only require the lower order's calculation of matrix and determinant to make the analysis of vibration for the plane link mechanism.

通过该方法，只需要进行阶次很低的矩阵和行列式计算即可完成平面连杆机构的振动分析。

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