# Python3; standard library only. Reproduces all24 full-precision scenarios.
import csv, math, sys
writer=csv.writer(sys.stdout,lineterminator='\n')
writer.writerow(['note_rate_pct','months','fee_pct_of_gross','net_cash','gross_principal','fee','payment','interest','repayment','repayment_less_net'])
for rate in [10,15,20]:
 for n in [36,60]:
  for f in [0,3,5,8]:
   p=10000/(1-f/100); r=rate/1200
   payment=p*r/-math.expm1(-n*math.log1p(r)); total=payment*n
   writer.writerow([rate,n,f,10000,p,p-10000,payment,total-p,total,total-10000])