linear congruence

With the help of constructing matrix and applying elementary transfor-mation, this paper gives the simple and useful solution of the following three prob-lems in elementary number theory: greatest common factor and its times sum, in-definite equation, linear congruence expression series.

本文借助构造矩阵和施行初等变换，为初等数论中以下三个问题提供了简便实用的解法：最大公因数及其倍数和、不定方程，一次同余式组。

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The ray trace and the illuminance calculation method of the CAD system is analyzed. And the linear congruence generator is introduced in the calculation, which improves the emulation reliability.

对该照明CAD系统的光线追迹与光照度计算方法进行了理论探讨，其中在光照度计算方法中引入了线性同余组合发生器，大大提高了模拟的真实性。

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Based on the quadratic congruence interleaver, a new algorithm which is improved on the linear congruence is advanced, the choices of its parameters are analyzed systematically and The new algorithm has the effects on the low weight codewords distribution.

基于二次算术同余交织器的构造算法，提出了对线性同余交织器的改进，系统地分析了其参数的选择情况及对低码重分布的影响。

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