how to get value of pi

Many people are interested in Raspberry Pi's hardware hack function, one thing I see is Raspberry Pi's low power consumption function. I can use it to replace the Linux Server currently in use. In my previous articles, I have introduced how to use

Build a Qt cross-compiling environment for Raspberry Pi 2B and Raspberry Pi 3 The lab project needs to use Qt to develop a user interaction interface on Raspberry Pi. Although Raspberry Pi's hardware configuration is constantly improved with version

π is a truly magical number followed by countless people. I am not very clear about the fascinating point of an irrational number that is always repeated. In my opinion, I am happy to calculate π, which is the value of pi. Because π is an irrational

Pi is the true magic number that countless people follow. I'm not quite sure about the charm of an irrational number that never repeats. In my opinion, I am happy to compute PI, which is the value of pi. Because pi is an irrational number, it is

First, pre-preparationReach the goal:Using Rapberry Pi to drive MQ-2 smoke Alarm module, the information is collected and extracted, and then Zabbix monitoring system to collect and process information collected.1. Prepare the Raspberry Pi

Securi-Pi: Uses Raspberry Pi as a stepping stone for securityGuideLike many readers of LinuxJournal, I have also lived a very common "technology nomadic" life today, from one access point to another between networks, we are in different places in

GuideLike many linuxjournal readers, I have also lived in today's very popular "tech nomads" life, between networks, from one access point to another, where we are in different parts of the real world and remain connected to the Internet and other

Brief introductionA simple device for the control sensor of the terminalFeatures that can be implementedIt can realize real-time monitoring of Raspberry Pi terminal by mobile phone, camera gimbal manipulation, intrusion alarm, temperature detection,

I. Demand analysisEnter the number of digits you want to calculate to the decimal point, and calculate the value of Pi Pi. Second, the algorithm: MCA Youth formula π/4=4arctan1/5-arctan1/239 The formula was discovered in 1706 by John Mathews, a

0 PrefaceThis article reads Raspberry Pi CPU temperature through file operations. In Linux, any device operations are abstracted as file read/write, read the content in the/sys/class/thermal/thermal_zone0/Temp File to get the Raspberry Pi CPU