4ginv0.c

很多算法的详细C语言编程 很方便学计算方法的参考

  #include "stdio.h"
  #include "4ginv.c"
  main()
  { int m,n,ka,i,j;
    static double a[5][4]={ {1.0,2.0,3.0,4.0},
                  {6.0,7.0,8.0,9.0},{1.0,2.0,13.0,0.0},
                  {16.0,17.0,8.0,9.0},{2.0,4.0,3.0,4.0}};
    static double aa[4][5],c[5][4],u[5][5],v[4][4];
    double eps;
    m=5; n=4; ka=6; eps=0.000001;
    printf("MAT A IS:\n");
    for (i=0; i<=4; i++)
      { for (j=0; j<=3; j++)
          printf("%13.7e ",a[i][j]);
        printf("\n");
      }
    printf("\n");
    printf("MAT A+ IS:\n");
    i=ginv(a,m,n,aa,eps,u,v,ka);
    if (i>0)
      { for (i=0; i<=3; i++)
          { for (j=0; j<=4; j++)
              printf("%12.6e ",aa[i][j]);
            printf("\n");
          }
        printf("\n");
      }
    printf("MAT A++ IS:\n");
    i=ginv(aa,n,m,c,eps,v,u,ka);
    if (i>0)
      { for (i=0; i<=4; i++)
          { for (j=0; j<=3; j++)
              printf("%13.7e ",c[i][j]);
            printf("\n");
          }
        printf("\n");
      }
  }