幻方

At the same time, the problem of magic square is a typical NP problem, and there are still lots of unresolved puzzle and unfathomed mystery because of the complexity today.

但是，幻方问题是一个典型的 NP 难题，由于问题的复杂性，至今仍有很多未解决的难题和不解之谜。

Thirdly, we introduce the common image shuffling technique and present a new changing pixel location approach based on magic square.

接着介绍了常见的图像置乱技术，并给出一种新的基于幻方矩阵的改变像素点位置的二值图像置乱方法。

The author gives a new formula of constructing the 8k orders Franklin semi magic square and its prove.

给出了构造任意8k阶Franklin半幻方的又一公式及其证明。

In the novel, both the Lin mother and daughter have fallen in love with the same man, a general manager of an electronic company, Fang. The woven texture is not only about blood ties but also represents sex and love under different cultural settings, bespeaking different values and cultural orientations, and symbolizing the tragedy of in the 21 Century, a time of overlapping cultural.

刘志庆的《幻情》中与某电子公司总经理方小华恋爱的林彩萍和林怡虽然是母女俩，然而她们之间并不是只具有血缘联系那么简单，而是代表着不同的文化时代的性与爱，体现着物质化时代的性与艺术化时代的爱的价值取向和文化指向，象征着性与爱在21世纪之初的文化重叠和交错的悲剧。

With the development of digital image enciphering techniques,there appeared a lot of methods including those based on Arnold transformation and affine transformation and those based on theories of Hilbert curve,knight-tour problem,Gray code,etc.

随着图像加密技术的发展，出现了各种各样的加密方法，其中有基于Arnold变换、仿射变换、Hilbert曲线、幻方、骑士巡游、Gray码、混沌序列和基于频域的置乱加密技术。

With the development of digital image enciphering techniques,there appeared a lot of methods including those based on Arnold transformation and affine transformation and those based on theories of Hilbert curve,knight-tour problem,Gray code and etc.However,there are few criteria to measure the merits and demerits of these methods.

随着图像加密技术的发展，出现了各种各样的加密方法，其中有基于Arnold变换、仿射变换、Hilbert曲线、幻方、骑士巡游、Gray码、混沌序列和基于频域的置乱加密技术，但是却缺少一种能有效衡量这些方法的置乱程度及反映加密次数与置乱程度关系的标准。

Professor John Searl has explained the Law of the Squares and many of its unique properties extensively within his books.

约翰塞尔教授已在他的书中解释了幻方定律和许多相关的特性，并且在许多国家的学校，会议和大学中做了学术讲座。

That is a magic square to n * n natural numbers line up every trip, every out, and each diagonal figures and hav...

幻方即1至n*n自然数排成的每行、每列、每条对角线数字之和均相等的方阵。这是一个流行的解法。

His magic square evolved into the Latin square in his later papers.

他演变成幻方的拉丁广场发表论文后。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。