numbers

long list of numbers

由 百般思念 提交于 2019-12-11 23:09:20
问题 I want to write a long list of numbers in python, but I don't want to enter the numbers one by one because that's boring. So, how can I do that? For the ones who are familiar with MATLAB, I want to write something witch looks 1:100, but I don't know how to write it in python! By the way, I can append numbers for a one-element-list in a loop but I am looking for something mostly like a built in operator. 回答1: Do you want something like the builtin range function? >>> range(1,10) [1, 2, 3, 4, 5

How to work out time difference between two times on a 24 hour clock

由 心不动则不痛 提交于 2019-12-11 21:33:14
问题 I have a problem with some code I have been producing in JavaScript. I want to calculate the difference between two times on a 24 hour clock. The data comes from two input time fields: <input type="time" id="start" /> <input type="time" id="end" /> Because of this the times come in a string 00:00, which doesn't help for number calculations. The way I worked it out was to minus the start from the end. This works perfectly if the the end time is greater, however if the end time is past 11:00

Only making one number instead of a number between 0 and 2 multiple times

由 别说谁变了你拦得住时间么 提交于 2019-12-11 21:13:46
问题 Ok, so I was going to make a neat program that made your Number Lock, Caps Lock, and Scroll Lock keys flash. My problem is when I run it, it only produces one number, instead of multiple ones that are different, any ideas as to what the problem might be? Set Keys = WScript.CreateObject("WScript.Shell") 'So The Script Can Press keys Dim MAX, MIN 'Declaration MAX = 2 'Sets MAX Equal To 2 MIN = 0 'Sets MIN Equal To 0 Randomize 'So The Numbers Are Different All The Time Number = (Int((MAX-MIN+1)

Calculate div's position within a div

由 馋奶兔 提交于 2019-12-11 21:06:18
问题 Good day, I need some help in JS please. Say I have this HTML: <div> <div onclick="countPos()"></div> <div onclick="countPos()"></div> <div onclick="countPos()"></div> </div> When I click on a div (inside the parent's div), I want a JS function to fire off, which will return the position of that div. So, if I click the third div - return 3, if I click the first div - return 1 and so on. How can I do that please? 回答1: You need to send the current clicked element to the function like <div

Generate random doubles in between a range of values - Java

由 流过昼夜 提交于 2019-12-11 19:35:34
问题 I have written this piece of code which generates random doubles in between -1 and 1. The only problem is that it only produces one random double and then just prints out that for the other doubles that I want to produce. E.g. if the first double is 0.51 it just prints 0.51 over and over again instead of generating new random doubles. What is wrong with the following code? public static void main(String[] args) { double start = -1; double end = 1; double random = new Random().nextDouble();

Use an inner.HTML mathematically?

由 被刻印的时光 ゝ 提交于 2019-12-11 19:18:28
问题 I'm making a script, in which i have to use an inner.HTML which is a number, and work with it mathematically. Here's the example: <span id="searchResults">2301</span> As you can see, the inner.HTML is a number, and I'd like to make a script like: var results = document.getElementById("searchResults"); if (results > 3000) { location.reload(true); } Of course this isn't possible because the script doesn't see the inner.HTML as a number it can mathematically work with. So, is there a way to

how to display a javascript var in html body

由 我们两清 提交于 2019-12-11 17:59:50
问题 I am looking for a way to call a javascript number in the body of an html page. This does not have to be long and extravagant just simply work, I just want something like: <html> <head> <script type="text/javscript"> var number = 123; </script> </head> <body> <h1>"the value for number is: " + number</h1> </body> </html> 回答1: Use document.write(). <html> <head> <script type="text/javascript"> var number = 123; </script> </head> <body> <h1> the value for number is: <script type="text/javascript

Can a number in JavaScript ever reach to Infinity in runtime?

由 孤街浪徒 提交于 2019-12-11 17:34:26
问题 I was just curious, whether a number in JavaScript can ever reach Infinity . The range of JavaScript numbers is pretty good enough -- 2 to the power of 64 different numbers, which is about 18 Quintilian (an 18 with 18 zeros after it) . That’s a lot. Now, I've few questions here: What would really happen when a number grows beyond that range? Would JavaScript refer it as a new Infinity number? What are all the scenarios in JavaScript, where the value Infinity could be assigned to a variable in

How to fill in the “succeeding” numbers whenever there is a 0 in R?

由 99封情书 提交于 2019-12-11 16:33:20
问题 I have a string of numbers: n1 = c(1, 1, 0, 6, 0, 0, 10, 10, 11, 12, 0, 0, 19, 23, 0, 0) I need to replace 0 with the corresponding number right "behind" it to get, while leaving the 0s in the tail alone (cause there is nothing right behind them): n2 = c(1, 1, 6, 6, 10, 10, 10, 10, 11, 12, 19, 19, 19, 23, 0, 0) How can I get from n1 to n2? This seems to be a much harder question than the one I've asked earlier: How to fill in the preceding numbers whenever there is a 0 in R? where flodel has

Regex for number comparison?

由 泄露秘密 提交于 2019-12-11 16:32:22
问题 I would like to perform regex to return true/false if the input 5 digit from input matching data in database, no need to cater of the sequence, but need the exact numbers. Eg: In database I have 12345 When I key in a 5 digit value into search, I want to find out whether it is matching the each number inside the 12345. If I key in 34152- it should return true If I key in 14325- it should return true If I key in 65432- it should return false If I key in 11234- it should return false Eg: In
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