The phrase 'ad infinitum' conveys the concept of something continuing indefinitely, with no limits on the duration of time or amount of money it involves. An example could be a perpetual annuity of payments made by a company to an individual, where the individual receives payments indefinitely.
A perpetual annuity, also known as perpetuity, is a financial instrument involving the receipt or payment of a constant amount annually for an indefinite period. The present value of such an annuity can be calculated using a specific formula.
