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我是Python的新手,正在嘗試計算並輸出基於4.5%年利率的貸款年度餘額。病程5年和原則= 1000,但我只能做到每年支付的金額,但資產負債不匹配這應該是要求:Python 3.5 - 每年貸款餘額
balance total payment
year 1 817 223
year 2 626 447
year 3 427 671
year 4 218 894
year 5 0 1118
我的計劃是:
def monthlyPayments(principle,annual_interest_rate,duration):
global r, n
r=(annual_interest_rate/100)/12 #monthly interest rate
n=duration*pm#Total number of monthly payments for duration of loan
f1=pow(1+r,n)
f2=r*f1
f3=pow(1+r,n)
f4=f3-1
f5=f2/f4
monthlyPayment=principle*f5
return monthlyPayment
def balance(principle,annual_interest_rate,duration,pm):
f1=pow(1+r,n)
f2=pow(1+r,pm)
f3=f1-1
f4=f1-f2
f5=f4/f3
remainingLoanBalance=principle*f5
return remainingLoanBalance
principle=1000.0
annual_interest_rate=4.5
duration=5
pm=12#payments made
monthlyPayments=monthlyPayments(principle,annual_interest_rate,duration)
totalPayment=monthlyPayments*pm
balance =balance(principle,annual_interest_rate,duration,pm)
print("LOAN AMOUNT:",principle,"INTEREST RATE (PERCENT):",annual_interest_rate, "\nDURATION (YEARS):", duration, "MONTHLY PAYMENT:", int(monthlyPayments))
for i in range(1,duration+1):
print("YEAR:" ,i, "BALANCE:", int(balance), "TOTAL PAYMENT", int(totalPayment))
totalPayment=totalPayment+monthlyPayments*pm
balance=balance-monthlyPayments*pm
TNK U,酷派非常簡單。我必須使用2個功能,1.計算每月支付和2.計算剩餘餘額。 MonthlyPayment = Principal * r(1 + r)n(1 + r)n-1 r是月利率(4.5/100)/ 12利率= 0 tuse:MonthlyPayment = Principal/n n = (5x12) 第二個函數計算並返回剩餘的貸款餘額。按照確切順序(本金,實際利率,期限,數量支付)接受4個四段。 本金:貸款總額。 – dprogram
annual_interest_rate:4.5 number_of_payments:已支付的每月付款數量。 計算剩餘貸款餘額使用: 剩餘貸款餘額=本金*(1 + r)n-(1 + r)p(1 + r)n-1 r是月利率。 r的計算方法是首先將annual_interest_rate除以100,然後將結果除以12以使其成爲每月。如果利率= 0,則使用:RemainingLoanBalance =本金(1-pn) n是整個貸款期間的每月支付總額。 n =貸款年限x 12。p =支付金額。 Func應該返回剩餘的bal作爲float float – dprogram
@dprogram,我在我的答案中添加了「**代碼(沒有numpy)**」部分 - 它不使用「numpy」模塊。 – MaxU