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Introduction to the formula of sin function Grammar: SIN (number) Number is the angle, in radians, that requires a sine. Note: If the unit of the parameter is degrees, you can multiply PI ()/180 or use the RADIANS function to convert it to

What is a virtual optical drive? How does a virtual optical drive work? A lot of small White said that the virtual optical drive after downloading do not know how to use. For the virtual optical drive is what how to use this problem, the experience

has been very interested in wireless interaction, this time to practice practicing ~ The analysis based on the iOS platform, selected two representative of the music player, QQ music and Watercress FM. Because these two products on the web side has

Two key transition technologies of metropolitan Area Network IPv6 transition Technology--nat444 and ds-lite, what are the basic factors to be considered when choosing two kinds of transition technologies? This blog post will give you a detailed

　　Color is empty, empty is colorwhen it comes to black and white, we will come up with a lot of classic masterpieces from history. Yes, the beginning of the invention of photography, like the film, is black and white, how many pioneers, and left

The first is to change several configurations of the PHP-FPM: /www/wdlinux/php/etc/php-fpm.conf /www/wdlinux/etc/php-fpm.conf Max_children from the previous 10 to the current 30, so that there is sufficient php-cgi process can be used; Change the

Let's take a look at a Zabbix and RRDtool drawing zabbixapi use of the monitoring data technology article, I hope that the following can help you. After one weeks of death knock, Zabbix data and RRDtool drawing are clear, do the first operation of

First, let's start with a simple look at what is the award BIOS? Award BIOS is Award Company's Bios,award is a company name, BIOS is the basic input and output system! The BIOS is the basic input/output system, the abbreviation of the elementary

PS want to turn white into a transparent color is a very simple thing, the general approach is to use magic wand tool to select a wide range of white and then delete. But if the white in the picture is not together, the method is less useful. The

1, the basic knowledge of ping The ping command believes that we are all familiar with but it is not a lot of people who can play the role of Ping, of course, I am not saying that I can let ping play the most functions, I just often use ping this

　Computer Delete file prompt Recycle Bin is corrupted whether or not to empty the Recycle Bin on the drive how to fix 1, as an administrator to run the command prompt; 2. In the command prompt, enter the following two commands: Rd/sx:recycled

　　 What we will see in this article is the full user manual for the FLV Player 4 free Software! 　　Begin Run your FLV or media files 　　Stop Stop running your FLV or media files 　　Stay Temporarily suspend running your FLV or media files. Press

Now canon, Nikon and other new product lines are equipped with WiFi features, can connect the computer, mobile phone, printer, television, and camera of the mutual transfer of photos, many novice buy the camera for the first time to set the

Everyone in the use of the computer often mistakenly delete the program or file, delete the file we will habitually empty the Recycle Bin, but this will cause we can not retrieve the file by the Recycle Bin mistakenly deleted. In fact, for the Win7

What if Camtasia studio clicks on the recording screen and doesn't respond? "Camtasia studio recording with no response to screen clicks" 1, right click on the desktop Camtasia Studio 8 icon, and then click "Open File Location"; 2, find "

How to adjust the brightness of ASUS laptop screen ASUS notebook to adjust the brightness of the hot key is fn+f1: Reduce screen brightness, fn+f2: Increase the brightness of the screen, if this key regardless of the use is very likely to be

the Dell System e-support Tool (DSET) tool can be used to collect server hardware information, store information (RAID cards, hard drives, etc.). and Linux drivers, services, network settings, and so on, but also includes cpu,memory, ESM log,

Because there are many uncertainties, network administrators occasionally forget the fast router's username and password, you can reset the fast router, restore until the factory state to resolve the issue. 　　54M Series Wireless router and

10 tricks to easily troubleshoot XP system startup failures: 1. Use Windows startup If the startup problem is due to the active partition's startup record or if the file used by the operating system startup is corrupted, the startup disk will be

Windows Vista adds features and stylish Aerl glass visuals that will require more expensive hardware so your computer can support it. Check out the checklist below to see if you've met all the basic requirements in deciding which Vista version your