Question

Hi. I was trying to solve second problem of Set01 (Paying debt off in 1 year). Code is below.
I get a syntax error on the first print command inside the while loop. Could anyone tell me why? Thanks.

Answer 1

```
OutBalance=float(raw_input('Enter purchased value: '))
AIR=float(raw_input('Enter annual interest rate: ')) #AIR = Annual Interest Rate
month=0
PaidInterest=0
MinPay=0
MinPay=round(((AIR/((1-(1/(1+AIR)**12))))*OutBalance),0)
while MinPay%10!=0:
MinPay+=1
if MinPay%2==0:
print MinPay
for n in range(0,12):
while OutBalance>0:
month+=1
PaidInterest=OutBalance*(AIR/12)
Amort=MinPay-PaidInterest
OutBalance=OutBalance*(1+(AIR/12)-MinPay
print ("Month is: ", month)
print 'Paid interest is: ',PaidInterest
print 'Amortization is: ',Amort
print 'Remainind balance is ',OutBalance
print MinPay,' is the min payment required'
print ''
```

Answer 2

The problem is not with the print statement but the line of code before it. You did not close your parenthesis.

OutBalance=float(raw_input('Enter purchased value: '))
AIR=float(raw_input('Enter annual interest rate: ')) #AIR = Annual Interest Rate
month=0
PaidInterest=0
MinPay=0
MinPay=round(((AIR/((1-(1/(1+AIR)**12))))*OutBalance),0)

while MinPay%10!=0:
MinPay+=1
if MinPay%2==0:
print MinPay
for n in range(0,12):
while OutBalance>0:
pass
month+=1
PaidInterest=OutBalance*(AIR/12)
Amort=MinPay-PaidInterest
OutBalance = (OutBalance*(1+(AIR/12)-MinPay))


print "Month is: %s", month
print 'Paid interest is: ',PaidInterest
print 'Amortization is: ', Amort
print 'Remainind balance is ',OutBalance
print MinPay,' is the min payment required'
print ''

Answer 3

What bbkzr31 is taling about is this line:
```
OutBalance=OutBalance*(1+(AIR/12)-MinPay
```
Two ( one ).

Answer 4

Hahahahaha such a silly mistake =P

Thanks folks =)

Answer 5

Well, here is my code:
```
OutBalance=float(raw_input('Enter purchased value: '))
AIR=float(raw_input('Enter annual interest rate: ')) #AIR = Annual Interest Rate
MIR=AIR/12
month=0
PaidInterest=0
MinPay=0
MinPay=round((OutBalance*MIR*((1+MIR)**12))/(((1+MIR)**12)-1),0)
while MinPay%10!=0:
MinPay+=1
if MinPay%2==0:
print MinPay
for n in range(0,12):
while OutBalance>0:
month+=1
PaidInterest=round(OutBalance*(MIR),2)
Amort=round((MinPay-PaidInterest),2)
OutBalance=round((OutBalance-(MinPay-(OutBalance*MIR))),2)
print ("Month is: ", month)
print 'Paid interest is: ',PaidInterest
print 'Amortization is: ',Amort
print 'Remainind balance is ',OutBalance
print MinPay,' is the min payment required'
if OutBalance<0:
print 'Number of months is: ',str(11)
else:
print 'Number of months is: ',str(12)
print ''
```

Thing is, I used French Amortization System formula for finding a minimum payment needed, then I rounded to first multiple of 10. I don't think this is the major idea of programming, i.e. using formulas. Any tips you could give me?

I've tried to state a minimum payment equal to 10, then try it. If it does not work, it should be incremented by 10. Once again I'd use another formula.

Answer 6

And I reckon the month computation code is not proper...