Val Schedule

Key Val Schedule in Interest Fn refers to an optional object of type Schedule that can be used to restrict the set of dates which when used as input to the function here lead to a non-zero result.

If omitted, any input date d leads to a function output that equals the interest accrued either up to d or to a date close to d if so instructed by the key Whole Accr End
Otherwise, the provided object's key _Adjusted Dates lists a series of dates d₁, d₂ , ... , dᵤ and the function returns a zero result for any input date d that is not part of that series.