 Home
 Products
 Integration
 Tutorial
 Barcode FAQ
 Purchase
 Company
how to use barcode in c#.net 2 1 0 1 2 3 Start here Move downward by 5 units Finish here in Software
3 2 1 0 1 2 3 Start here Move downward by 5 units Finish here Quick Response Code Generation In None Using Barcode generation for Software Control to generate, create Quick Response Code image in Software applications. Reading QR Code ISO/IEC18004 In None Using Barcode decoder for Software Control to read, scan read, scan image in Software applications. Identity, Grouping, and Signs
Generating Quick Response Code In C# Using Barcode generator for .NET framework Control to generate, create QRCode image in .NET framework applications. Print QRCode In VS .NET Using Barcode encoder for ASP.NET Control to generate, create QR Code ISO/IEC18004 image in ASP.NET applications. Let s review the mechanics of addition and subtraction, and make sure you understand how the signs work Then we ll proceed to two important rules, called laws, that govern addition and subtraction These laws apply not only to the integers, but to all quantities, expressions, and numbers you ll encounter in algebra Printing QR Code In .NET Using Barcode generation for .NET Control to generate, create QR Code JIS X 0510 image in Visual Studio .NET applications. Denso QR Bar Code Printer In VB.NET Using Barcode creation for .NET framework Control to generate, create QR Code ISO/IEC18004 image in .NET applications. The identity element There is one special integer that you can add to, or subtract from, any integer, and it will never change the value That integer is 0 Because adding 0 to a number gives you the same number again, 0 is called the additive identity element You can also call it the subtractive identity element, although that term is informal The word identity means that you always get an output value identical to the input value For any integer a, the following two statements are always true: Code39 Drawer In None Using Barcode creator for Software Control to generate, create Code39 image in Software applications. UPC  13 Creation In None Using Barcode printer for Software Control to generate, create EAN13 image in Software applications. a+0=0 and a 0=0
Encode DataMatrix In None Using Barcode printer for Software Control to generate, create DataMatrix image in Software applications. GS1 128 Generator In None Using Barcode generator for Software Control to generate, create UCC128 image in Software applications. 56 Addition and Subtraction
Paint Bar Code In None Using Barcode creator for Software Control to generate, create bar code image in Software applications. UPCA Encoder In None Using Barcode creation for Software Control to generate, create GTIN  12 image in Software applications. Grouping with parentheses A couple of minutes ago, you saw some expressions containing parentheses around a negative number or quantity Here s one of those expressions, with the righthand side changed to a variable: Royal Mail Barcode Maker In None Using Barcode generator for Software Control to generate, create RM4SCC image in Software applications. Linear Barcode Encoder In Visual Studio .NET Using Barcode printer for VS .NET Control to generate, create Linear image in .NET applications. 3 ( 5) = a These parentheses indicate that you should consider 5 as negative 5, not the subtraction of 5 If you don t write the parentheses, the above expression is 3 5 = a This is an example of improper mathematical grammar It s a problem because it s ambiguous People can t be sure what it means Should you subtract 5 from 3 That would give you 8, not 2 Should you subtract 5 from 3 twice That would give you 13 Does the double minus sign mean something different from plain old subtraction or addition Pay attention to parentheses when you see them When you write an expression, be sure to include parentheses when you need them You can add extra parentheses to an expression as long as you don t change the meaning Always be sure the number of opening parentheses in an expression is the same as the number of closing parentheses Print Data Matrix ECC200 In ObjectiveC Using Barcode encoder for iPhone Control to generate, create Data Matrix ECC200 image in iPhone applications. Making EAN / UCC  13 In None Using Barcode creation for Font Control to generate, create EAN / UCC  13 image in Font applications. Signs in addition and subtraction Here s a summary of how addition and subtraction work for negative integers as well as for positive ones: Data Matrix ECC200 Encoder In None Using Barcode generation for Font Control to generate, create Data Matrix ECC200 image in Font applications. Bar Code Maker In Java Using Barcode encoder for BIRT reports Control to generate, create bar code image in BIRT applications. When you add a positive, the result grows larger When you subtract a positive, the result grows smaller When you add a negative, the result grows smaller; it s like subtracting a positive When you subtract a negative, the result grows larger; it s like adding a positive Generate Code 128B In Java Using Barcode printer for Java Control to generate, create Code 128 Code Set B image in Java applications. Scan UPCA Supplement 5 In None Using Barcode reader for Software Control to read, scan read, scan image in Software applications. You might want to memorize two general facts For any two integers a and b, a + ( b) = a b and a ( b) = a + b Are you confused
Here s a reallife situation where the idea of subtracting a negative number makes pretty good sense Suppose the people in your town are trying to reduce their driving because of high gasoline prices They ve started a support group People go to meetings once a month to share information about how much less they ve driven in the past month compared with the month before that One after another, the members of the group tell their stories William says, I drove 45 fewer miles Anna says, I cut back by 65 miles Maria says, I drove 200 miles less last month! Then it comes to you You have The Commutative Law for Addition
not done so well The group leader asks, How much did you cut back Go on, don t be afraid to tell us You blush, clear your throat, hold your head up, and declare, I reduced my driving last month by negative 80 miles Here s a challenge! Start with the integer 5, add 3 to it, then subtract 6 from that, then subtract 10 from that, then add 14 to that, and finally subtract 21 from that What s the result

