What exactly is the principle of QR code? What should I do when I run out? How many are there?

Mondo Technology Updated on 2024-02-01

How does it work? What should I do when I run out? How many are there?

Let's talk about a brain-opening question, we will scan *** when we buy things a lot of times, so what is the principle of ***? How many are there? Will it run out?

Let's start with the conclusion, of course he is limited and will be used up, but you and I may not be able to wait. For example, we may have to use tens of billions of *** every day, but even so, it is difficult to consume them. Or rather, it's hard to be consumed in a limited amount of time.

Because the number of *** may be far greater than you think. How did it come about? It's actually arranged and made using what's called binary. The so-called binary system is to use zeros and ones to represent a certain information. All information is represented by a zero-sum one.

For example, in a square *** matrix. Black represents one, and white represents zero, so the *** you see is generally a black and white grid. Through different permutations and combinations, each one is unique***

Note that the size of ** is not the same, it has a total of 40 specifications. I'm sure you've guessed it, because it's a square, so it will have a representation of tens by dozens. The smallest is 21 21 and the largest is 177 177.

For example, the minimum specification should have been 441 squares, which is the 441st power of two, which is an astronomical number. But pay attention, maybe some friends are good at observing, you will find that *** not all the grids are occupied, but there will be a large square in each of its three corners.

This square doesn't actually have small black and white squares, why? Because it helps you correct your direction. In this way, even if your phone is crooked, you can scan *** Of course, these large squares do not contain information. There were originally more than 400 blocks of information, but now there are only more than 290 left. In other words, the amount of information that can be represented now is more than 290 squares of two. But this is already an astronomical amount.

Note that this is nothing more than the smallest of the *** gauge sizes. If it is 177 177 specifications, the total number of information calculated in this way is more than 30,000 square meters of two, and ordinary people should not have any concept of this number.

Let's put it this way, every day in the world everyone keeps sweeping, you sweep ten, sweep 100 every day. That is, hundreds of billions of *** If you sweep down at this rate, sweep until the earth is destroyed, the sun**, this *** can't be swept away, so don't worry too much.

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