12 2011 档案
摘要：#include <iostream>using namespace std;int main(){ double a[] ={2,2,2, 3,2,4, 1,3,9}; double b[] = {1,0.5,2.5}; double m =0; int n=3; for (int i = 0; i < n-1; i++) { for (int j = i + 1; j < n; j++) { m = a[j*n+i] / a[i*n+i]; ...
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摘要：bool isNumber(char s){ if (s >= 48 && s <= 57) return true; else return false;}bool isLetter(char s){ if (s >= 97 && s <= 122) return true; else return false;}//函数的作用是把如“-45+2*a-a^2-4*a^6+a^8”这样的字符串提取成这样：（-45,2,-1,0,0,0,-4,0,1）,只提取系数，并根据指数安排起位置.//s为传入的字符串，resu...
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摘要：#include <iostream>using namespace std;void malo(double **p){ *p =new double; double *w=new double[10]; for (int i=0;i<10;i++) { w[i]=2*i; } *p=w;}void main(){ double *m=NULL; malo(&m); for (int i=0;i<10;i++) { cout<<m[i]<<""; } delete[] m; syst...
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摘要：#include <iostream>#include <math.h>using namespace std;int main(){ double a[] = { 4, 2, -2, 2, 2, -3, -2, -3, 14 }; double *L = NULL; double *U = NULL; double tmp=0; int n; //矩阵内总数据个数 int s; //矩阵的阶数 ...
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