numbers

I read that the range of an int is dependent on a byte. So taking int to be 4 bytes long, thats 4 * 8 bits = 32 bits. So the range should be : 2 ^ (32-1) = 2 ^ (31) Why do some people say its 2^31 - 1 though? Thanks! Because the counting starts from 0 And the range of int is 2,147,483,647 and 2^32 which is 2,147,483,648 . hence we subtract 1 Also the loss of 1 bit is for the positive and negative sign Check this interestinf wiki article on Integers:- The most common representation of a positive integer is a string of bits, using the binary numeral system. The order of the memory bytes storing

I'm using gnuplot to analysis data. And I frequently use palette and matrix. However whenever I use that, precision is always problem. If I increase precision by define many color, it is difficult to remember and to read. If I decrease number of color to clear comparison, precision become decrease. So I'm thinking matrix with plot number. If I can display both color and number, it will be more easy to see and analysis. At least I want display only number,(Just use excel is a one choice but I don't want to) or display number with different color.(color determined by point value) If you know the

Possible Duplicate: Iphone UITextField only integer I want to place a text field that only accepts numbers (0-9, doesn't even need decimals), but even using the "Number Pad" entry option I still get a keyboard with various symbols on it. Is there a better control for this, is there a better control for what I'm doing, or do I just have to validate input manually? The following code will allow you to only input numbers as well as limit the amount of characters that can be used. -(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm trying to put the results of a fetch request into an array. My code: let appDelegate = UIApplication . sharedApplication (). delegate as ! AppDelegate let managedContext = appDelegate . managedObjectContext let fetchRequest = NSFetchRequest ( entityName : "CLIENTS" ) var mobClients = [ NSManagedObject ]() var arrayAllPhoneNumbers = [ String ]() do { let results = try managedContext . executeFetchRequest ( fetchRequest ) mobClients = results as ! [ NSManagedObject ] for clientPhoneNumber in mobClients { let myClientPhoneNumber =

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to create a histogram class that utilizes an application to run the program. public class Histogram { String name; int max; public Histogram (String name, int max) { this.name = name; this.max = max; } int[] count = new int[max+1]; public void add(int numbers) { // Handles out of bounds case if (numbers < 0 || numbers > max) return; count[numbers]++; } public String toString() { String result = name + "\n"; for (int index = 0; index < count.length; index++) { result = result + count[index] + ": "; for (int indexStar = 0;