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This is a creation in Article, where the information may have evolved or changed. Write an HTTP proxy with Golang, can catch the packet and scientific internet Origin Because of the need to restrict the Internet at work, just let our app surf the Internet, meaning that all the domain names or IPs requested by the app are released, and other domain names are banned, so I need to grab the app's HTTP request. Internet search, win under the Fiddler good,
This is a creation in Article, where the information may have evolved or changed. Write an HTTP proxy with Golang, can catch the packet and scientific internet Origin Because of the need to restrict the Internet at work, just let our app surf the Internet, meaning that all the domain names or IPs requested by the app are released, and other domain names are banned, so I need to grab the app's HTTP request. Internet search, win under the Fiddler good,
This is a creation in Article, where the information may have evolved or changed. Write an HTTP proxy with Golang, can catch the packet and scientific internet Origin Because of the need to restrict the Internet at work, just let our app surf the Internet, meaning that all the domain names or IPs requested by the app are released, and other domain names are banned, so I need to grab the app's HTTP request. Internet search, win under the Fiddler good,
In the operation of Excel, some special value conversion is unavoidable, the following gives the conversion method is similar, the code is as follows:Hssfworkbook Hssfworkbook = new Hssfworkbook () isheet sheet = hssfworkbook.createsheet ("Sheet1");//Set first column (Cell) width sheet . Setcolumnwidth (0, 5000);//Create a formatted instance object IDataFormat format = Hssfworkbook.createdataformat ();//Preserve two-bit decimal format//Create a cell "1.20" Icell cell = sheet. CreateRow (0). Crea
This is a very thin book. I was confused by its title at the beginning. I thought it was a metaphysical topic about the meaning of life. Later I learned that it was a masterpiece in software engineering, simply put, a death journey is an unfinished project. The journey of death is a book about a project that cannot be completed. It tells us how to identify such a project, how such a project is generated, and how to deal with it. "This is not scient
The materials for scientific and technological achievements appraisal are almost ready. It was originally thought that the software product qualification test was difficult to complete before that. With close cooperation with the software evaluation center, this impossible important task was actually completed, A few days ago, I got the "software product appraisal test report" and took another step towards the sc
When the number is too long, it turns into scientific notation. the numeric value is obtained from the database. because the value is a little large (50 digits), it is immediately counted by science, how can this problem be avoided ?, 50 digits are indeed big enough. You can use strings for storage, because MYSQL cannot process data types of 50 digits. PHP is naturally not so long as a number. Why does it become a
There's a lot of code for exporting Excel, which is the simplest:protected void Btndcall_click (object sender, EventArgs e){String datastring = DateTime.Now.ToString ("Yyyymmddhhmmss");//is the current month and minute of the day and seconds as the file nameResponse.Clear ();Response.Buffer = true;Response.Charset = "GB2312";Response.appendheader ("Content-disposition", "attachment;filename=" + datastring + ". xls");response.contentencoding = System.Text.Encoding.UTF7;Response.ContentType = "App
Background:Objective: To use the Dbscan clustering algorithm under Python.Scikit-learn is a scipy and numpy based open-source machine learning module, including classification, regression, clustering algorithm, the main algorithm has SVM, logistic regression, Naive Bayes,Kmeans,dbscan, etc. Currently funded by INRI, occasionally Google also funding a little. SciPy is an open source Python algorithm library and Math Toolkit,scipy contains modules with optimizations, linear algebra, integrals, int
A friend wrote an algorithm that converts the input integer or floating-point number to the scientific notation expression. After writing the algorithm, he asked me to help him see if there were any bugs or other issues that were not fully considered. I have been scared by the fact that I have not carefully read it-I have written nearly three hundred lines of code. I didn't say anything about him. I just went back to my computer and wrote a try. Requ
When a PHP number exceeds a certain length, it is automatically converted to the form of scientific notation , such as 1.2345678912346E+16;How do you avoid conversion and let it show as it is?However, you can use PHP function number_format () to format the numbers, the reference code is as follows:$str = Number_format (123456789123456789123456, 0, ",");p Rint_r ($STR);Output AS-is: 123456789123456789123456 Extended reading:PHP retains 2 deci
$a = Microtime (true);Echo ' SDFSDFSDF ';$b = Microtime (true);$c = $b-$a;echo "echo $c;//Output is 5.0067901611328E-6echo "/*** @param $num scientific notation string such as 2.1E-5* @param int $double decimal number reserved digits default 5 bits* @return string output to be of type number*/function Sctonum ($num, $double = 5) {if (False!== Stripos ($num, "E")){$a = explode ("E", Strtolower ($num));return Bcmul ($a [0], Bcpow ($a [1], $double), $dou
Many universities include software development-related majors in engineering, which gives people the illusion that software development is also an engineering discipline, just like civil engineering and power machinery. However, this is fundamentally wrong. There are indeed scientific laws behind civil buildings and power machinery, while there is basically nothing behind software development, far from being a "sc
Not commonly used, so tidy up here and share it with your peersMethod One: Take the Mantissa method Publicfunction Numtostr ($num) {if(Stripos ($num,'e') ===false) return$num; $num= Trim (Preg_replace ('/[=\ ' "]/',"', $num,1),'"');//scientific notation appears and reverts to string$result =""; while($num >0) {$v= $num-floor ($num/Ten) *Ten; $num= Floor ($num/Ten); $result=$v. $result; } return$result; }Method Two: Numerical law met
1.np.logspace (start,stop,num): a function representation means that geometric series num is generated between (Start,stop)eg as npprint np.logspace (1,4,4)The result is: [10. 100.1000. 10000.]2. Np.fromstring (' admin ', dtype=np.int8): The function is to replace the string with the corresponding ASCII value as npprint np.fromstring ('admin', dtype= np.int8)The result is: [97 100 109 105 110]3. Customize your own data type:Import NumPy as NPStudent = Np.dtype ({' names ': [' name ', ' age '], '
Installing Telnet on centos/rhel/scientific Linux 6 7DescriptionBefore you install and use Telnet, you need to keep the following points in mind. Using Telnet in a public network (WAN) is a very bad idea. It transmits log-in data in plaintext format. Clear text is visible to everyone. If you still need telnet, it is strongly recommended that you only use it inside the LAN. You can use SSH as a workaround. But be sure not to log in wi
"Background" Python is easy to use, but it's a headache for package management and Python versions, especially when you're using Windows. To address these issues, there are a number of distributions of Python, such as Winpython, Anaconda, and so on, which pack Python and many of the most popular packages to facilitate direct use of the "overview"Anaconda is a Python release for scientific computing that supports Linux, MAC, Windows, and provides packa
When the value of a double is large, the displayed result becomes a scientific notation with E, which is not easy to read when the data in the report is displayed, and E is removed to display the original datapublic static void Main (string[] args) {Double num=123456789456.12;SYSTEM.OUT.PRINTLN (num);}Output results: 1.2345678945612E11Method: BigDecimalAdd a line of code:public static void Main (string[] args) {Double num=123456789456.12;BigDecimal bg
How to prevent Excel from converting in C # by scientific calculationstring style = @ " ";//Note that this is a style that does not need to be modified to be used directlyResponse.Clear ();Response.Buffer = true;Response.Charset = "Utf-8";Response.appendheader ("Content-disposition", "Attachment;filename=plandetail.xls");response.contentencoding = System.Text.Encoding.UTF8;Response.ContentType = "Application/ms-excel";//Set Output file type to excel f
Http://www.softpedia.com/get/Programming/Other-Programming-Files/Python-x-y.shtml Pythonxy Interest Group QQ Group 237031331, Welcome to join the rock and soil scientific research people.Software: http://code.google.com/p/pythonxy/Tutorial site: http://hyry.dip.jp:8000/pydoc/pydoc_write_tools.htmlThe book has been published for purchase, thanks to the author's hard work. Interested in buying a physical book.Author Introduction, http:/
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