comparing matrix values

[jess17]

I have a matrix X = [a, b ,c ; d ,e ,f; h, i ,j] and the values
a,b,c,d,e,f,g,h,i,j are not pre known. but i need to find out if they hold the same value, ie if a=b=c=d=e=f=h=g etc.

 

[horace1]

could you use a simple loop? e.g.

     bool same=true;
     for(i=0;i<3;i++)
        for(j=0;j<3;j++)
          if(X[0][0] != X[i][j])
              same= false;

could be made more efficent as a function, return when the comparison fails