Please Guys, this code is from a math program, i want to understand it:

at line 5 what is done to rt?

at line 8 what does continue do?

at line 9 and 11 what is done to rt?

and thanks to you all

note that sys and back are defined previously as double **sys, *back;Code:1 double evaluate(int g) 2 { 3 int u; 4 double rt=0; 5 rt=sys[g][nun]; 6 for(u=0;u<nun;u++) 7 { 8 if(g==u) continue; 9 rt-=sys[g]*back; 10 } 11 rt/=sys[g][g]; 12 return rt; 13 }