CheckBox DayFinder Version 1.0 ------------------------------ by Mike Mezaros Freeware from [x]CheckBox Software INVENTORY --------- This archive should've included: DAYFIND.EXE - The CheckBox DayFinder application. DAYFIND.TXT - This text file. REQUIREMENTS ------------ This program requires Microsoft Windows 3.0 or higher, running in Standard or Enhanced mode. This program requires the royalty-free Visual Basic runtime DLL. This DLL is widely available, and free... It is available on CompuServe in the Microsoft Basic Forum (GO MSBASIC) in library #5, and on GEnie in the IBM PC RoundTable (IBMPC), as VBRUN.ZIP. PURPOSE ------- CheckBox DayFinder is a small application that demonstrates an algebraic formula. This formula allows you to determine the day that any given date falls on. (Perhaps you've seen Ed Begley Jr., an actor, demonstrate his mastery of this formula on Late Night with David Letterman.) The formula, if you should care to memorize it, or this program, can be used to win friends, seduce lovers, and impress the boss. USING THE PROGRAM ----------------- Using the program is quite simple. Simply select the month, date, and year suffix from the three list boxes, and click the "Calculate Day" button. THE ACTUAL FORMULA ------------------ This algebraic formula allows you to "plug in" any month, date, and year, and figure out the day it falls on. As mentioned above, it has been shown off numerous times by actor Ed Begley Jr. on Late Night with David Letterman. It is also featured as part of a "learn how to do math in your head" package sold through television infomercials. It can also be found in many books. It looks pretty tricky, but in all honesty, it only takes an afternoon to memorize (and this is coming from someone whose worst subject of all time is math). Should you care to memorize the formula, here it is: (YS + (YS/4) + DATE + MV) MOD 7 = DV YS = Year Suffix. The last two numbers of the year. For example, the YS for 1992 would be 92. DATE = For example, for January 2nd, 1992, the Date would be 2. MV = Month Value. A special value assigned to each month. A chart with these values can be found below. MOD = Mod is a fancy way of saying, "Divide this by this, and give me the remainder as the answer." For example, 25 MOD 4 would equal 1 (25 divided by 4 equals 6, with a remainder of 1). DV = Day Value. This will be your answer. A special value is assigned to each day of the week. A chart with these values can be found below. MONTH VALUE CHART DAY VALUE CHART Jan - 0 Sun - 0 Feb - 3 Mon - 1 Mar - 3 Tue - 2 Apr - 6 Wed - 3 May - 1 Thu - 4 Jun - 4 Fri - 5 Jul - 6 Sat - 6 Aug - 2 Sep - 5 Oct - 0 Nov - 3 Dec - 5 Point to remember: When dividing the Year Value by 4, you may sometimes get an answer with a decimal. Drop the decimal. CONTACTING THE AUTHOR --------------------- Should you want to contact me, here's how you can do it: US Mail: CheckBox Software, One Leary Drive, North Brunswick, NJ, 08902. CompuServe (via Z*Net Publishing): 75300,1642 GEnie (via Z*Net Publishing): Z-NET InterNet (via Z*Net Publishing): 75300,1642@compuserve.com FoReM-Net (Fnet) E-Mail: Mike Mezaros, Node 593 Z*Net 24-Hour BBS: (908)-968-8148 LEGAL STUFF ----------- This package (consisting of the CheckBox DayFinder software and the associated documentation) is Copyright 1992 by Mike Mezaros. All Rights Reserved. The Microsoft Visual Basic runtime DLL (VBRUN100.DLL) is Copyright 1991 by Microsoft Corp. This package may be distributed freely. In other words, it is "freeware" - you may use it in any way you see fit, without charge, but you may not sell or alter it. Use it entirely at your own risk. Windows and Visual Basic are trademarks of Microsoft Corp. CompuServe is a trademark of CompuServe Information Service Inc. GEnie is a trademark of General Electric Corp. -the end-