Chaotic systemmagic squareimage encryptionLyapunov exponentsThis article introduces a simple and effective new algorithm for image encryption using a chaotic system which is based on the magic squares. This novel 3D chaotic system is invoked to generate a random key to encrypt any color image. A ...
magic cube 一种变化多端的智力玩具。又称鲁毕克方块。1974年由匈牙利建筑学教授鲁毕克发明,70年代末80年代初风行于欧美及全世界。 魔方系由富于弹性的硬塑料制成的6面正方体。核心是一个轴,并由26个小正方体组成。包括中心方块6个,固定不动,只一面有颜色。边角方块8个(3面有色)可转动。边缘方块12个(2面...
As Renat mentioned, you should not expect algorithms to do magic for you, however I'm hopeful to come up with a reasonable estimate of the number of spots. Here, I'm going to give you some hints and resources, check them out and call me back if you need more information. First, I'...
While the Draw a Flower Based on an Algorithm page displays pictures for each of the steps, children could draw whatever flower they like. Yes, there will be children who want to draw the flower to match the steps. However, there will be some that don’t want their flower parts to look...
By the symmetry of the problem,the symmetric algorithm of nth order odd magic square is given. 利用对称性给出了n阶奇幻方的一种对称算法,该算法实现所耗费的时间低于已有的算法。2. In order to overcome the defects of key-space of symmetric algorithm, this paper presents a kind of symmetric en...
{int t; t = x; x = y; y = t;}voidmagic_o(int[][N],int);voidexchange(int[][N],int);intmain(void){intsquare[N][N]= {0};inti, j;magic_o(square,N/2);exchange(square,N);for(i =0; i < N;i++) {for(j =0; j < N;j++)printf("%2d ", square[i][j]);printf...
For each square (x', y') with letter c adjacent to (x, y): If s+c is a word, output s+c If s+c is a prefix of a word, insert (x', y', s+c) into the queue If you store your dictionary in a trie, testing ifs+cis a word or a prefix of a word ...
= nil { panic(err) } fmt.Println("Mahalanobis distance=", distance) } FUNCTIONS func CovarianceMatrix(points *matrix.DenseMatrix) *matrix.DenseMatrix Return the covariance matrix for this set of points (sample covariance is used) points.Rows() = dimensions. points.Cols() = number of points...
aBoth of these two opinions may be alright, letting students to select their own lecturers will benefit their independent thinking ability obviously, but major issue here of that is wasting time when students made a wrong choice at "selecting right lecturers", for most of them have less experie...
I am looking for a fast, integer only algorithm to find the square root (integer part thereof) of an unsigned integer. The code must have excellent performance on ARM Thumb 2 processors. It could be assembly language or C code. Any hints welcome....