Changes

<div style="font-size:25px">'''COUPDAYS(settlement, maturity, frequency, basis)'''</div><br/>

<div style="font-size:25px">'''COUPDAYS (SettlementDate,MaturityDate,Frequency,Basis)'''</div><br/>

*Where <math>settlement</math> is the security's settlement date (a date when coupon or a bond is purchased),  

*Where <math>SettlementDate</math> is the security's settlement date (a date when coupon or a bond is purchased),  

*<math>maturity</math> is the security's maturity date (a date when coupon or a bond expires),  

*<math>MaturityDate</math> is the security's maturity date (a date when coupon or a bond expires),  

*<math>frequency</math> is the number of coupon payments per year, and  

*<math>Frequency</math> is the number of coupon payments per year, and  

*<math>basis</math> is the type of day count basis to use.

*<math>Basis</math> is the type of day count basis to use.

COUPDAYS() calculates the number of days in the coupon period.

COUPDAYS(), returns the number of days in the coupon period that contains the settlement date.

== Description ==

== Description ==

COUPDAYS(settlement, maturity, frequency, basis)

COUPDAYS (SettlementDate,MaturityDate,Frequency,Basis)

*COUPDAYS() calculates the number of days between the coupon dates surrounding the settlement date.

*COUPDAYS() calculates the number of days between the coupon dates surrounding the settlement date.

*<math>settlement</math> and <math>maturity</math> dates should be entered either in 'date format' or 'dates returned using formulas'. If dates are not valid, Calci displays #N/A error message.

*<math>SettlementDate</math> and <math>MaturityDate</math> dates should be entered either in 'date format' or 'dates returned using formulas'. If dates are not valid, Calci displays #N/A error message.

*If <math>settlement</math> date ≥ <math>maturity</math> date, Calci displays #N/A error message.

*If <math>SettlementDate</math> ≥ <math>MaturityDate</math> date, Calci displays #N/A error message.

*The values for <math>frequency</math> should be 1,2 or 4.  

*The values for <math>Frequency</math> should be 1,2 or 4.  

For Annual payment, frequency = 1,

For Annual payment, Frequency = 1,

For Semi-annual payment, frequency = 2,

For Semi-annual payment, Frequency = 2,

For Quarterly payment, frequency = 4.

For Quarterly payment, Frequency = 4.

*<math>basis</math> value is optional. If omitted, Calci assumes it to be 0.  

*<math>Basis</math> value is optional. If omitted, Calci assumes it to be 0.  

Below table shows the use of <math>basis</math> values:

Below table shows the use of <math>basis</math> values:

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*If <math>basis</math> value is other than 0 to 4, Calci displays #N/A error message.

*If <math>Basis</math> value is other than 0 to 4, Calci displays #N/A error message.

== Examples ==

== Examples ==