# Documentation

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# beytbill

Bond equivalent yield for Treasury bill

## Syntax

Yield = beytbill(Settle,Maturity,Discount)

## Description

example

Yield = beytbill(Settle,Maturity,Discount) returns the bond equivalent yield for a Treasury bill.

## Examples

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This example shows how to find the bond equivalent yield for a Treasury bill that has a settlement date of February 11, 2000, a maturity date of August 7, 2000, and a discount rate is 5.77.

Yield = beytbill('2/11/2000', '8/7/2000', 0.0577)
Yield = 0.0602

This example shows how to use datetime inputs to find the bond equivalent yield for a Treasury bill that has a settlement date of February 11, 2000, a maturity date of August 7, 2000, and the discount rate is 5.77.

Yield = beytbill(datetime('11-Feb-2000','Locale','en_US'), datetime('7-Aug-2000','Locale','en_US'),...
0.0577)
Yield = 0.0602

## Input Arguments

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Settlement date of the Treasury bill, specified as a scalar or a NTBILLS-by-1 vector of serial date numbers, date character vectors, or datetime arrays. Settle must be earlier than Maturity.

Data Types: double | char | datetime

Maturity date of the Treasury bill, specified as a scalar or a NTBILLS-by-1 vector of serial date numbers, date character vectors, or datetime arrays.

Data Types: double | char | datetime

Discount rate of the Treasury bill, specified as a scalar of a NTBILLS-by-1 vector of decimal fraction values.

Data Types: double

## Output Arguments

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Treasury bill yield, returned as a scalar or NTBILLS-by-1 vector.

### Note

The number of days to maturity is typically quoted as: md - sd - 1. A NaN is returned for all cases in which negative prices are implied by the discount rate, Discount, and the number of days between Settle and Maturity.