矩阵乘法,顾名思义矩阵与矩阵相乘, 两矩阵可相乘的前提:第一个矩阵的行与第二个矩阵的列相等 相乘原则: a b * A B = a*A+b*C a*c+b*D c d C D = c*A+d*C c*A+d*C 上代码 struct matrix { ll a[maxn][maxn]; }; matrix matrix_mul(matrix x,matrix y) { matrix temp; ;i<=n;i++) ;j<=n;j++) { tem
//Matrix ver1.0 //只支持矩阵内部(方阵)的运算 #include<iostream> #include<math.h> using namespace std; class matrix { double**num; int **e;//单位矩阵 int r; int c; unsigned int *array;//为全排序原矩阵列标提供初始顺序模板 unsigned int*arr;//为全排序伴随矩阵列标提供初始顺序模板 int**b;//存放原矩阵列标 i
# coding=gbk from PIL import Image import numpy as np # import scipy def loadImage(): # 读取图片 im = Image.open("lena.jpg") # 显示图片 im.show() im = im.convert("L") data = im.getdata() data = np.matrix(data) # print data # 变换成512*512 data =
Training little cats Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 9613 Accepted: 2296 Description Facer's pet cat just gave birth to a brood of little cats. Having considered the health of those lovely cats, Facer decides to make th
1.图像转换为矩阵 matrix = numpy.asarray(image) Help on function asarray in module numpy.core.numeric: asarray(a, dtype=None, order=None) Convert the input to an array. Parameters ---------- a : array_like Input data, in any form that can be converted to an