A quasi analytic method for solving structural optimization problems is developed by coordinated use of mathematical transformations, high quality approximation and two level approximation strategy.

协同利用数学变换、高精度近似和二级逼近策略，提出了一种求解结构优化问题的准解析法。

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One major area transformation work is the building of transformations to MathML from TeX, the mathematical typesetting system developed by Donald Knuth.

一项主要领域的转换工作是建立从mathml到tex的转换，TeX是Donald Knuth开发的数学排版系统。

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Using projective and perspective transformations, the mathematical model of 3d vision inspection for grid structured light is established in homogeneous coordinate system in this paper.

本文在广义坐标系中采用投影和透视变换理论建立了网条结构光三维视觉检测模型。

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The information from the beam-splitter is then transmitted separately to the recipient, so that he knows whether to accept C unaltered as part of the message, or apply one of three mathematical transformations to it, to arrive at the right result (this does not compromise secrecy, since any eavesdropper will not know what the transformation needs to be applied to).

ECONOMIST: Quantum information technology