Home » Further Maths Unit 3 & 4 » A2 - Recursion and Financial Modelling » 4.3 Modelling Compound Interest Systems with Regular Withdrawals using Technology

4.3 Modelling Compound Interest Systems with Regular Withdrawals using Technology

Note: if you cannot remember how to model reducing balance relations with regular repayments, revise notes for 4.1 Modelling Compound Interest Systems with Regular Withdrawals.

Guide to Analysing Compound Interest Equations with Regular Withdrawals using Technology (Casio Graphics Calculator)

Note: if you cannot remember how to use the Casio Financial Calculator, revise notes for 3.3 Modelling Reducing Balance Systems with Regular Repayments using Technology.

  • The annual interest rate should be entered/calculated as a positive value.
  • The initial value (PV) should be entered/calculated as a negative value (remember we justify this by saying we must lose this amount to create the account).
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