Schedule
Key Schedule in Scheduled Linear Fn refers to an optional object of type Schedule that implies the dates d₁ , d₂ , ... , dᵣ where the functions ƒ₁ , ƒ₂ , ... , ƒᵣ apply.
This entry acts in the same fashion as that for the key Schedule in Scheduled Real Fn
Look at that key's description for more details.