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Function List:

C++ API

: [n, s] = weekday (d)

: [n, s] = weekday (d, format)

Return the day of the week as a number in n and as a string in s.

The days of the week are numbered 1–7 with the first day being Sunday.

d is a serial date number or a date string.

If the string format is not present or is equal to "short" then s will contain the abbreviated name of the weekday. If format is "long" then s will contain the full name.

Table of return values based on format:

`n`	`"short"`	`"long"`
1	Sun	Sunday
2	Mon	Monday
3	Tue	Tuesday
4	Wed	Wednesday
5	Thu	Thursday
6	Fri	Friday
7	Sat	Saturday

See also: eomday, is_leap_year, calendar, datenum, datevec.

Demonstration 1

The following code

 ## Current weekday
 [n, s] = weekday (now ())

Produces the following output

n =  2
s = Mon

Demonstration 2

The following code

 ## Weekday from datenum input
 [n, s] = weekday (728647)

Produces the following output

n =  2
s = Mon

Demonstration 3

The following code

 ## Weekday of new millennium from datestr input
 [n, s] = weekday ("1-Jan-2000")

Produces the following output

n =  7
s = Sat

Package: octave

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