Quasi-coupon date

The real yield formula below has been taken from the Debt Management Office s Formulae for Calculating Gilt Prices from Yields, 15 January 2002 update, and it covers bonds with two or more remaining cash flows. The term quasi-coupon date, in the notes that follow the formula, means the theoretical cash flow dates determined by the redemption date—they are quasi dates because weekends and holidays may mean the true payment dates differ. 

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