public static void main(Stringjmdzxc args) {Scanner sc=new Scanner(System.in);System.out.println("请输入矩阵的阶层：");int n=sc.nextInt();doublejmdzxcjmdzxc num=new double[n][n];System.out.println("请输入需要求的矩阵：");for(int i=0;i<n;i++) {for(int j=0;j<n;j++) {num[i][j]=sc.nextDouble();}System.out.println();}System.out.println("您输入的矩阵为：");for(int i=0;i<n;i++) {for(int j=0;j<n;j++) {System.out.print(num[i][j]+" ");}System.out.println();}double result=1;for(int i=0;i<n-1;i++) {double k=num[i][i];double k1=num[i+1][i];for(int j=i;j<n;j++) {num[i+1][j]=num[i][j]*number(k,k1)zjdwti+1][j];}}for(int i=0;i<n;i++) {result*=num[i][i];}System.out.println("计算结果为："+result);}public static double number(double num1,double num2) {return -(num2/num1);}
}