IWEEK1/IWEEK2/IWEEK3

DCL:MISC１:DATELIB : Handling of Dates *#:Explanation of Functions

7.5.2 IWEEK1/IWEEK2/IWEEK3

1.

Function

Determines the weekday number.
IWEEK1 : Determines the weekday number corresponding to a Type 1 date.
IWEEK2 : Determines the weekday number corresponding to a Type 2 date.
IWEEK3 : Determines the weekday number corresponding to a Type 3 date.

2.

Call

IWEEK1(IDATE)
IWEEK2(IY,ITD)
IWEEK3(IY,IM,ID)

3.

Explanation of Parameters

IDATE (I) Type 1 date.

IY (I) Year.

IM (I) Month.

ID (I) Day.

ITD (I) Serially-counted day.

IWEEK1 (I) Value of function that gives the weekday number corresponding to a Type 1 date.

IWEEK2 (I) Value of function that gives the weekday number corresponding to a Type 2 date.

IWEEK3 (I) Value of function that gives the weekday number corresponding to a Type 3 date.

4.

Notes

(a): None

`IDATE`	`(I)`	Type 1 date.
`IY`	`(I)`	Year.
`IM`	`(I)`	Month.
`ID`	`(I)`	Day.
`ITD`	`(I)`	Serially-counted day.
`IWEEK1`	`(I)`	Value of function that gives the weekday number corresponding to a Type 1 date.
`IWEEK2`	`(I)`	Value of function that gives the weekday number corresponding to a Type 2 date.
`IWEEK3`	`(I)`	Value of function that gives the weekday number corresponding to a Type 3 date.