the calendar used for reference and/or option date calculation
date-range check
time-range check
the day counter used for date/time conversion
Calculations
These methods must be implemented in derived classes to perform the actual volatility calculations. When they are called, range check has already been performed; therefore, they must assume that extrapolation is required.
the latest date for which the curve can return values
the latest time for which the curve can return values
the date at which discount = 1.0 and/or variance = 0.0
the settlementDays used for reference date calculation
date/time conversion
This abstract class defines the interface of concrete
local-volatility term structures which will be derived from this one.
Volatilities are assumed to be expressed on an annual basis.