KAlgebra/Credit payment

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Revision as of 18:33, 17 December 2010 by Marto1914 (talk | contribs)

1.Write this Function , which calculate the monthly interest rate by given yearly interest rate.

x-yearly given interest rate

f:= x-> x/12

2.Write this Function , which calculate the whole sum you have to return to the bank

x- the sum you get from the bank

y- the monthly interest rate (you can use the previous function with parameter the yearly interest rate f(x))

z- how many month you have to pay the credit

c:=(x,y,z)-> x*(1+z*y/100)