KAlgebra/Credit payment: Difference between revisions

Revision as of 18:17, 18 December 2010

1.Write this Function in console mode.It calculates the monthly interest rate by given yearly interest rate.

monthlyInterestRate:= yearlyInterestRate-> x/1200

2.Write this Function in the console mode.It calculates the monthly payment you have to return to the bank

monthly_payment:=(sum, mir, months)->(sum*mir^months*(mir-1))/(mir^months-1))

3.Write this Function in the console mode.It calculate the whole sum you have to return to the bank

sum:=(monthlyPayment,months)->monthlyPayment*months

@@ Line 1: / Line 1: @@
 .Write this Function in console mode.It calculates the monthly interest rate by given yearly interest rate.
-x-yearly given interest rate
+{{Input|1=monthlyInterestRate:= yearlyInterestRate-> x/1200}}
-{{Input|1=f:= x-> x/12}}
 [[File:Screenshot-26.png|600px]]
-.Write this Function in the console mode.It calculates the whole sum you have to return to the bank
+.Write this Function in the console mode.It calculates the monthly payment you have to return to the bank
-x- the sum you get from the bank
+*mir=monthlyInterestRate
-y- the monthly interest rate (you can use the previous function with parameter the yearly interest rate f(x))
+{{Input|1=monthly_payment:=(sum, mir, months)->(sum*mir^months*(mir-1))/(mir^months-1))}}
-z- how many month you have to pay the credit
+[[File:Screenshot-32.png|600px]]
-{{Input|1=c:=(x,y,z)-> x*(1+z*y/100)}}
+.Write this Function in the console mode.It calculate the whole sum you have to return to the bank
-[[File:Screenshot-32.png|600px]]
+{{Input|1=sum:=(monthlyPayment,months)->monthlyPayment*months}}