interest(利息)ge數學問題

Q1:Simple interest(I) ge公式係唔係=Principal(P) x Rate(R) x Time(T)
Yes

Q2:咁Compound Interest ge公式係咩?
Compound Interest = Principal (P) x [1 Rate(R)]^Time(T) - Principal (P)
For Principal compound interest
Compound Interest = Principal (P) x [1 Rate(R)]^Time(T)

** Remark: The symbol ^ means power


2008-08-15 16:56:12 補充：
Revised the heading
For Principal + compound interest:

Compound Interest = Principal (P) x [1 Rate(R)]^Time(T)

Information

For just interest only, the principal must be deduced from the from the total amount.

For principal + compound interest, it is not necessary to deduce the principal.

2008-08-15 20:41:11 補充：
If the principal is P, the time is 5 years and the rate is 5% per annum,
the compound interest + principal
= P (1 + 5%)^5

2008-08-16 23:56:03 補充：
^ symbol 代表幾多次方

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