numeric

问题 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! 回答1: 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

问题 Is there a way to key a numeric keypad without punctuations? <TextInput keyboardType='numeric' ..... /> if I use secureTextEntry={true} , it gets the right keyboard I want, but the values are replaced with * . so, this is what im getting: This is what I want: 回答1: Did you try number-pad ? both number-pad and numeric work for me on iOS. 回答2: keyboardType={"number-pad"} Works on Android. Note: I am using FormInput from react-native-elements. 回答3: I had the same problem. I could solve doing

问题 If I get a line segment which was long enough to cross a given polygon, which could be concave or convex polygon. How did I find the all the intersected light segments which was contained in the polygon? If the target region is not polygon, but a implicit curve function or spline curve, how to do it? Thanks! 回答1: There really isn't a simple solution to your problem, especially with curves (beziers and splines). On top of the complexities of polygon clipping, there's the considerable challenge

问题 I've created a class that can be parameterised by anything that can be converted to Numeric class Complex[T <% Numeric[T]] (val real : T, val imag : T) { //... complex number methods ... } Then elsewhere in the code I try: var myComplex = new Complex(0, 1) This raises a compilation error because (surprisingly) there's no implicit conversion between Int and Numeric[Int] or even between Int and Integral[Int]. Am I missing something? Is there an implicit conversion somewhere I'm not seeing?

问题 I am trying to load a remote website and get all numbers that are inside of parentheses. But what ends up happening is it only matches the last value. Is my regex wrong? Am I using the correct flags? I have added the example of what it should match on in the second $html variable. //$html = file_get_contents("http://example.com/test.html"); $html = "(1234) (12) (1) \r\n (1346326)"; preg_match_all("^[(\d)]+$^", $html, $matches, PREG_PATTERN_ORDER); print_r($matches); echo "<br>"; foreach (

问题 I have the following problem with batch files. I simplify the problem below. Running the following batch file, foo.bat, returns word in standard out (in this case, command prompt window) instead of hey . foo.bat @SET 1word="hey" @ECHO %1word% However, executing echo %1word% from the command line returns hey . Is there a reason this should/might be the case? Are numbers not allowed to prefix environment variable names? 回答1: You can create and use environment variables with names that begin

问题 I've been trying without success to create a 3D SURFACE mesh using GMSH (v.3.0.6). The problem that I am having is, after creating the surface and generating the mesh, when I read the .MSH file, I get a bizarre node numbering, i.e., not all the normal vectors are oriented outward, some points inward. I tried to create a cube and a sphere, but I always face the very same problem. Below is the .GEO file I created using the GMSH GUI for the cube. // Gmsh project created on Fri Apr 20 17:08:44

问题 I would like to sort the values in the following file numbers.txt, below is an example 1.1 1.2 10.0 2.2 1000.0 However when I execute the following cmd sort numbers.txt I get the following: 1.1 1.2 10.0 1000.0 2.2 What cmd to I need to sort the numeric values appropriately? 回答1: Use the -n flag to sort numerically, instead of lexicographically: sort -n numbers.txt 来源： https://stackoverflow.com/questions/12764690/sorting-numbers-with-the-sort-command

问题 I would like to extract all the numbers from an alphanumeric string in excel. I have an excel sheet with list of alphanumeric strings as shown below and I would like to extract all the numbers from the alphanumeric string and store it in a new cell I already tried the below formula found online but it outputs '6' as result but it isn't right, so can anyone please help me with it? SUM(MID(0&A2,LARGE(ISNUMBER(-- MID(A2,ROW(INDIRECT("1:"&LEN(A2))),1))*ROW(INDIRECT("1:"&LEN(A2))), ROW(INDIRECT("1

问题 I have the following Timestamp vector: Timestamp <- c("30-09-2016 11:45:00.000", "01-10-2016 06:19:57.860", "01-10-2016 06:20:46.393") Timestamp is part of a table (unfortunately it doesn't seem to be a data.frame...) that contains other columns of degrees and weight: Timestamp Weight Degrees 1 30-09-2016 11:45:00.000 38.19 40.00 2 01-10-2016 06:19:57.860 39.12 40.00 3 01-10-2016 06:20:46.393 42.11 41.00 I would like to plot Weight against Timestamp, but the mode of Timestamp is "character",