扩展欧几里德算法不但能计算(a,b)的最大公约数，而且能计算a模b及b模a的乘法逆元。平方和乘算法的复杂度：执行次数至少要k次模乘，最多需要２ｋ次模乘。-Extended Euclidean algorithm for computing not only (a, b) the common denominator, and to calculate a modulus b and b modulus a multiplicative inverse of. Square and by the

利用k-means算法进行聚类，K-means算法以欧式距离作为相似度测度，它是求对应某一初始聚类中心向量V最有分类，使得评价指标J最小。算法采用误差平方和准则函数作为聚类准则函数。-Algorithm using k-means clustering, K-means algorithm Euclidean distance as a similarity measure, it is the pursuit of the vector V corresponding to a initial

将一个四位数分成两段得到的两个两位数，它们的和的平方等于原数，具有这种性质的数没有特殊分布规律，因此采用穷举法对所有四位数进行判断，从而筛选出符合这种性质的四位数。具体算法是任取一个四位数，将其截为两部分，前两位为a，后两位为b，然后套用性质公式计算并判断。-Two two-digit number will get a four-digit divided into two sections, the square of their sum is equal to the original n

在高斯混合噪声背景下实现SLIM谱估计算法和l1范数SLIM谱估计法，并在-5到15的信噪比条件与CRLB对比均方频率误差-the paper achieves the SLIM spectral estimation algorithm and l1-SLIM spectral estimation method under the Gaussian mixture background noise,then compares the mean square frequency error

hat the image I was created by convolving a true image with a % point-spread function PSF and possibly by adding noise. The algorithm % is optimal in a sense of least mean square error between the % estimated and the tr