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- Given s='<span class="viewcount">/acct /1,696,807 /name/</span>' write a Bash command to extract the numbers without commas. Your command must work for 1 any number of numbers and commas. Answers based on fixed nubmer ofnumbers and com- mas . Write a grep statement to match lines such as below using two backreferences. Mr abc came home to Mrs abc and visit Mr xyz and Mrs xyz to discuss backreferencesCreate a spreadsheet that takes eight values that a user inputs into eight different cells. Then create a row that transposes the cells to simulate a transposition cipher, using the example transposition cipher from the text. Remember to work from right to left, with the pattern 1 > 3, 2 > 6, 3 > 8, 4 > 1, 5 > 4, 6 > 7, 7 > 5, 8 > 2 where 1 is the rightmost of the eight cells. Input the text ABCDEFGH as single characters into the first row of cells. What is displayed?1. Which command will return the corner elements of a 10-by-10 matrix A? A. A([1,end], [1,end])B. A([1,1], [end,end])C. A({[1,1], [1,end], [end,1], [end,end]})D. A(1:end, 1:end) 2. Which command will return the fraction of positive numbers in a 10-by-10 matrix A? A. A(A > 0)/AB. numel(A > 0)/numel(A)C. sum(A > 0)/prod(size(A))D. nnz(A > 0)/numel(A) 3. Which command will delete (completely remove) the last cell of a cell-array C? A. C{end} = [];B. C[end] = [];C. C(end) = [];D. C{end} = {[]}; 4. Which command will create a plot of acceleration vs. time (i.e., a vector time on the x-axis and a vector acceleration on the y-axis)? A. plot(time, acceleration)B. plot(acceleration, time)C. plot([time, acceleration])D. plot([acceleration, time]) 5. Which command will give the standard deviation for each column in a 10-by-5 matrix Z? A. std(Z(:))B. std(std(Z))C. std(Z(1:5, :))D. std(Z) How to answer above questions based on Matlab!
- Generate a 10x10 matrix using the rand command. Multiply the fifth entry in the first rowby 10 and store the result in place of that entry. Print the matrix to the command window . I am confused on how to multiply the fifth entry in the first row by 10 after creating the matrixCan you help me here to find what is wr The time , dosn't work , it show 0000. 00 . 00 As in picture I attached with the question. Here the code for class and follow for the main. <?php//include("includes/config.php"); class Posts { private $db; // This __construct function I use to open up a connection to my database function __construct() { $this->db = new mysqli(DBHOST, DBUSER, DBPASS, DBDATABASE); if($this->db->connect_errno > 0) { die("Connection error: " . $db->connect_error); } } // My method to read posts from my database public function getPosts() { // sql command to get data from my database table called 'guestbook' $sql = "SELECT * from guestbook /*ORDER BY created DESC*/"; $result = $this->db->query($sql); return mysqli_fetch_all($result, MYSQLI_ASSOC); } public function addPost(string $user, string $content, $created ) { $created =date("M-d-Y h:i:s A");…Which of the following creates a matrix with 5 columns and 6 rows? n = size(5,6); y = ones(5,6); a = size(6,5); x = zeros(6,5);
- write a php code to realize the respond below according to the url and parameters,assume that there already a database contain these informations URL /api/user/update Method PUT Description To update userinfo Parameters NameTypeDescriptionusernameStringusernamerequest-typeStringsignify if the request is to update userinfo or log outdataObjectuserinfo object example: { "username":"somebody", "request-type":"log-out", "data":{ "pres" } } //or { "username":"somebody", "request-type":"update-status", "data":{ "uploadAmount":1000, "downloadAmount":1000 } } Response success: { "success": True, "message":"" } failed: { "success": False, "message":"username already exists." }The PHP function header() is used to ___________. a. redirect a user to a different page. b. deny access to a page if not authorized. c. substitute the current header or pass values into $_GET array during a redirect. d. All of the aboveReview the following program that extracts the email server domain name. >>> data = 'From stephen.marquard@uct.ac.za Sat Jan 5 09:14:16 2008 ' >>> atpos = data.find('@') >>> print(atpos) 21 >>> sppos = data.find(' ',atpos) >>> print(sppos) 31 >>> host = data[atpos+1 : sppos] >>> print(host) 1. Adapt the program to extract the user name (stephen.marquard) and Copy+Paste the code in the answer2. Run the adapted program and include a full window screenshot with system time and date in the answer.
- I want create matrix multiplaction but my web-site calculate wrong. can you see where the error is, can you fix it.Thank you so much for helping. <script>window.multiply = function() {var matrix1Arr=[], matrix2Arr=[];for (var k=0; k<5; k++) {matrix1Arr[k] = []; p=0;for (var p = 0; p < 5; p++) {matrix1Arr[k][p] = document.getElementById("mat1_"+k+p).value;}}for (var k=0; k<5; k++) {matrix2Arr[k] = []; p=0;for (var p = 0; p < 5; p++) {matrix2Arr[k][p] = document.getElementById("mat2_"+k+p).value;}}var result = multiplyMatrix(matrix1Arr, matrix2Arr);for (var l=0; l<5; l++) {for (var m=0; m<5; m++) {document.getElementById("mat3_"+l+m).value=result[l][m];}}}function multiplyMatrix(m1, m2) { var result = [];for(var j = 0; j < m2.length; j++) { result[j] = []; for(var k = 0; k < m1[0].length; k++) { var sum = 0; for(var i = 0; i < m1.length; i++) { sum += m1[i][k] * m2[j][i]; } result[j].push(sum); } } return result; } </scriptA Save all the commands for the following steps in your script file. Separate and label different steps using comments. Unless otherwise specified, do NOT suppress MATLAB's output. 3 Create the matrix A = 15 6 9 12 18 21 24 27 30 33 36 It can be done by typing: A = reshape (3:3:36,4,3)/Write The preceding code for the seeders file for the posts, but instead, we are now inserting users with the correct fields. Every user receives an auto-incremented ID by our MySQL server when inserting a user.