~/dfpal# time ./dfpal2 10. 1.000001
Start:
Initialized:   10        1.000001
for loop:
Final amount=1141973130130727445029596475.971760

real    0m10.722s
user    0m10.725s
sys     0m0.000s

~/dfpal# time perl -e '$n1=10;$n2=1.000001;for ($i=0;$i<60_000_000;$i++) { $n1=$n1*$n2;} print "Final amount=$n1\t$n2\n";'

Final amount=1.14197312449358e+27       1.000001

real    0m8.698s
user    0m8.701s
sys     0m0.000s

~/dfpal#