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Some friends are asking how to calculate the operation time in C language. Now I will give a simple example to illustrate.
figure 1 If we want to calculate for(b=0;b
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经济全球化的发展使得地域间交流变得越来越频繁，而作为长途旅行的首选交通工具——飞机正越来越多的影响着人们的生活。虽然飞机速度很快，然而数小时甚至十几、二十小时的长途飞行依然让人疲惫不堪，因此如何消磨长途旅行的机上时间是一个棘手的问题。不过最近以来，如果您经历过越洋飞行的话，您一定会注意到飞行中的一个显著变化。飞机速度没有变快、机上餐饮质量也没有提高，可飞行时间似乎缩短了。改变的是机载娱乐系统...[Details]
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Hybrid analog/digital instrument clusters will be available in nearly 70% of cars this year
The traditional dashboard is a key part of the car and will undergo major changes in the n...[Details]
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When something right becomes a habit, it has a positive and long-term impact on a person, and it is also of great significance. Developing the habit of using an oscilloscope will also have a lifelo...[Details]
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With the maturity of microcontroller MCU (or single-chip microcomputer) technology, the original analog transmitter has gradually been replaced by intelligent transmitters with microcontrollers as ...[Details]
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Have you ever needed a simple, low-cost latch circuit? Figure 1 shows such a circuit that provides power-failure protection with only a few dollars’ worth of components, essentially a silicon-control...[Details]
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What is the problem being solved? The race condition caused by SMP // Actually, it avoids the race condition of SMP, because each CPU has a variable with the same name, and there will be no race cond...[Details]
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Use and maintenance of electronic scales
Working principle of electronic scale: When the object is placed on the load-bearing platform, the sensor will deform and output a chan...[Details]
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Mir domestic development platform T507-H Android system release notes
As the most popular mobile operating system in the world, Android can be used on a large number of devices. It i...[Details]
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Author: Ben Eckermann, Technical Director, System Architect and Chief Engineer, Edge Processing, NXP On October 19, 2020, Arm announced the Ethos-U65 micro NPU. NPU is a neural processing unit, and...[Details]
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1. Use proteus to draw a simple circuit diagram for subsequent simulation 2. Programming /*********************************************************************************************************...[Details]
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The biggest difference between LED lighting fixtures and traditional lighting fixtures is that LED lighting fixtures are completely electronic products, while traditional lighting fixtures are only el...[Details]
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A patent filed by General Motors today shows the company recognizes that getting self-driving cars onto the road won't be a smooth process. For one thing, self-driving cars will become part of what...[Details]
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Yesterday, Apple released the new iPhone 12 family, and its stock price fell 2.65%. To be honest, although the iPhone 12 has finally caught up with the big guys, there is nothing too exciting about i...[Details]
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The Railway Research Institute is already conducting tests using a test device equipped with a flywheel weighing about 50kg. In the future, it is planned to develop a large-scale device with a flyw...[Details]
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