tmval.get_perpetuity_gr

tmval.annuity.get_perpetuity_gr(amount: float, pv: float, period: float, imd: str = 'immediate') → tmval.rate.Rate

Given a payment amount, payment frequency, and present value, returns a compound annual effective interest rate.

Parameters

• amount (float) – The payment amount.

• pv (float) – The present value.

• period (float) – The payment period, as a fraction of a year.

• imd (str) – Whether the perpetuity is ‘immediate’ or ‘due’.

Returns

The annual effective interest rate.

Return type

Rate