numeric

FormatTime, CurrentMinute , , m assigns the current minute to variable %CurrentMinute% , and its value is a string, not a numeric. I wanna do some calculations on the value of %CurrentMinute% , so how could I convert it to numeric? Thanks for any help in advance! AutoHotkey automatically converts numbers and strings as needed. FormatTime, CurrentMinute,, m NextMinute := CurrentMinute + 1 来源： https://stackoverflow.com/questions/13106275/how-to-convert-a-string-to-a-numeric-in-autohotkey

I am currently looking for a pass (not blind) high level of category sql injection application dvwa. Can not find the solution even if there are some ideas and tools that make life easier. source code form is as follows for the fans: if (isset($_GET['Submit'])) { // Retrieve data $id = $_GET['id']; $id = stripslashes($id); $id = mysql_real_escape_string($id); if (is_numeric($id)){ $getid = "SELECT first_name, last_name FROM users WHERE user_id = '$id'"; $result = mysql_query($getid) or die('<pre>' . mysql_error() . '</pre>' ); $num = mysql_numrows($result); $i=0; while ($i < $num) { $first =

suppose I want to calculate average value of a data-set such as class Averager { float total; size_t count; float addData (float value) { this->total += value; return this->total / ++this->count; } } sooner or later the total or count value will overflow, so I make it doesn't remember the total value by : class Averager { float currentAverage; size_t count; float addData (float value) { this->currentAverage = (this->currentAverage*count + value) / ++count; return this->currentAverage; } } it seems they will overflow longer, but the multiplication between average and count lead to overflow

This question already has answers here : How to convert a factor to integer\numeric without loss of information? (7 answers) Closed 5 years ago . I have a column containing speed measurements which I need to change to numeric so that I can use both the mean and sum functions. However, when I do convert them the values change substantially. Why is this? This is what my data look like at first: And here is the structure of the data frame: 'data.frame': 1899571 obs. of 20 variables: $ pcd : Factor w/ 1736958 levels "AB101AA","AB101AB",..: 1 2 3 4 5 6 6 7 7 8 $ pcdstatus : Factor w/ 5 levels

I just read an interesting article about php hanging on certain float numbers, see The Register and Exploring Binary . I never explicitly use floats, I use number_format() to clean my input and display for example prices. Also, as far as I am aware, all input from for example forms are strings until I tell them otherwise so I am supposing that this problem does not affect me. Am I right, or do I need to check for example Wordpress and Squirrelmail installations on my server to see if they cast anything to float? Or better, grep all php files on my servers for float ? Ways to mitigate the

I have a CEdit text box which is a part of a property pane and only allows numeric values (positive integers). The box works fine when people enter non-numeric values, but when they delete the value in the box a dialog pops up saying: "Please enter a positive integer." Here is the situation: 1. I have a number (say 20) in the box. 2. I delete the number. 3. I get the error dialog. Could anybody tell me how I can intercept this event and put a default value in there? Here is what my property pane looks like: const int DEFAULT_VALUE = 20; class MyPropertyPane:public CPropertyPane { //....