$k=0; while (){ $values{$k} = [ split ]; $k++; } $a = $values{$k}[0]; $b = $values{$k+1}[0]; #$a = 400; #$b = 0.2; $x = 0.203-((1-0.203)/100); for ($temp=1; $temp<102; $temp++){ $x = $x+((1-0.203)/100); $y = $a+$x**$b; write OUT; print OUT2 "$x $y\n";