|Product Name||Black Iko Carrying Case For Lg Vx6000 Vx6100 Lg Vx8700 Vx8600 Vx150 Cu400 Ax8600 Vx8700 Vx6000 Vx8100 Vx8000 Vx7000 Vx 6100 Vx8300 Vx5300 Vx5200 Vx4650 Lg Carrying Case|
|Category||Electronics / Photography|
|Short Description||1 Pack|
|Amazon.com||Buy on Amazon ~ B000BKH1OC|
|Price New||14.99 US Dollars (curriencies)|
|Features||Fine genuine leather The Ikon case is a combination of form, function, beauty and superior quality. Magnetic closing front flap. Soft micro-fiber interior lining; Entirely hand-crafted with hand selected premium materials to ensure superior quality. The Naztech Ikon case combines beauty with functionality by utilizing superior materials and workmanship. Naztech Boa cases for men and women supply elite style and superior performance for today's cognoscenti: those who demand and appreciate the finest. Through unprecedented involvement in every step of the creation process, even down to the hand stitching, Naztech has raised the bar for quality standards. All materials used in Naztech Boa cases are hand selected premium materials for which there is no substitute in terms of beauty or durability.|
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Article of interest
ISBN stands for International Standard Book Number. Originally this was a 10 digit number known as ISBN-10, but has been replaced with a 13 digit version known as ISBN-13 (aka EAN-13) to better fit in with the industry standard product numbering system.
The ISBN system offers a unique numbering system for books and publications of various types. ISBN offers 9 identification digits for each book or publication and one check digit. ISBN-13 expands the available number set by doubling the available numbers. You might think that the extra three digits would more than double the available numbers but ISBN is limited within the EAN-13 numbering system and will always start with 978 or 979 as the first three digits, leaving only 9 more digits for the actual identification digits and again the last digit is the check digit.
Any ISBN-10 number can be converted to ISBN-13. Any ISBN-13 number that starts with 978 can be converted back to ISBN-10. ISBN-13 numbers that start with 979 cannot be converted to ISBN-10.
The conversion process from ISBN-10 to ISBN-13 is a rather simple one. Start with the first 9 digits of the ISBN-10 number, place 978 in front and calculate the new check digit using the standard EAN check digit calculation.
If you want to calculate the check digit for ISBN-10, that is done using a MOD-11 calculation that is very different than the EAN check digit process.
- Lets start with ISBN-10 number 1-5905-9332-?
- Each digit is multiplied by its position for digits 1-9
- 1x1 + 5x2 + 9x3 + 0x4 + 5x5 + 9x6 + 3x7 + 3x8 + 2x9 = 180
- Now get the remainder 180 mod 11 = 4
- Now return the mod 11 again... 4 mod 11 = 4
- If the results is 10, return the letter X otherwise return the digit.
- For our example, the final number is 1-5905-9332-4
Look at the number above and below the barcode. You will see that except for the last digit in the ISBN number, all of the digits exist in the 13 digit version shown under the barcode right after the 978 and just before the new check digit of 5.
Now you can see how easy it is to convert between ISBN-10 and ISBN-13.