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a scientific paper and much more. | a scientific paper and much more. | ||
[[Image:Pfig2.png|left|300px]] | [[Image:Pfig2.png|left|300px]] | ||
There are from version 1 to version 40, and we use version 1. It is simple in all versions. | |||
This is made of 21 cells × 21 cells. It can contain 25 alphabets and Numbers. | |||
[[Image:Pfig3.png|left|300px]] | |||
It has information correction. So, if the design is little wrong, it can be scanned. | |||
The max version can scan QR code lacked 30% of information! | |||
[[Image:Pfig4.png|left|300px]] | |||
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