matrix_transpose.java

用QR分解来求矩阵的全部特征值 包括：QR分解

import java.lang.*;
import java.math.*;

public class Matrix_Transpose {
	public static double[][] Tranpose(double[][] A,int n){
		int i,j;
		double w;
		for(i=0;i<n;i++)
			for(j=0;j<=i-1;j++){
				w=A[i][j];
				A[i][j]=A[j][i];
				A[j][i]=w;
			}
		return A;
	}
/*	public static void main(String[] args){
		double[][] A={{1,1,1,1},{2,2,2,2},
				{3,3,3,3},{4,4,4,4}};
		int n=4;
		A=Tranpose(A,n);
		for(int i=0;i<n;i++){
			for(int j=0;j<n;j++)
				System.out.print(A[i][j]+" ");
			System.out.println();
		}
	}*/
}