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Perpetuities and future value of ordinary annuities

Use a recurrence relation to model the future value of an ordinary annuity, e.g. compound interest investment with periodic payments where interest is calculated before the periodic payment is made.

gm-u4-t2-s1-d1

Interactive

Interest grows, then the deposit adds

manipulative

Same recurrence machine as a reducing loan, but cashflow is +d — interest then deposit, with savings totals on the ledger.

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