Matrici patratice

Simetrii

• Fata de diagonala principala  
  • for(i=1;i<=n&&ok;i++)
    for(j=1;j<=n;j++)
    if(a[i][j]!=a[j][i])ok=0;

 

• Fata de diagonala secundara
  • for(i=1;i<=n-1&&ok;i++)
    for(j=1;j<=n-i;j++)
    if(a[i][j]!=a[n+1-j][n+1-i])ok=0;

 

• Fata de axa Ox
  • for(i=1;i<=n/2&&ok;i++)
    for(j=1;j<=n;j++)
    if(a[i][j]!=a[n+1-i][j])ok=0;

 

• Fata de axa Ox
  • for(i=1;i<=n&&ok;i++)
    for(j=1;j<=n/2;j++)
    if(a[i][j]!=a[i][n+1-j])ok=0;