digit Questions

7

Solved

I am working on a program that requires me to read in and validate a number, but in doing so I need to take a two digit integer (for example we'll say 18) and add it 1 + 8. Now I have it working wh...
Stochastic asked 26/11, 2014 at 5:10

30

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I would like to know how I can find the length of an integer in C. For instance: 1 => 1 25 => 2 12512 => 5 0 => 1 and so on. How can I do this in C?
Carree asked 18/6, 2010 at 9:8

5

Solved

I saw a question on a math forum a while back where a person was discussing adding up the digits in a number over and over again until a single digit is achieved. (i.e. "362" would become "3+6+2" w...
Ventriloquy asked 19/2, 2013 at 5:24

11

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Say I have a multi-digit integer in C. I want to break it up into single-digit integers. 123 would turn into 1, 2, and 3. How can I do this, especially if I don't know how many digits the integer...
Altruistic asked 15/2, 2012 at 22:46

7

I have string "ololo123". I need get position of first digit - 1. How to set mask of search ?
Dilly asked 23/8, 2010 at 13:0

10

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I'm trying to find the nth digit of an integer of an arbitrary length. I was going to convert the integer to a string and use the character at index n... char Digit = itoa(Number).at(n); ...But t...
Zajac asked 10/12, 2010 at 15:55

3

For C programming. How do i get numbers to be displayed as 00, 01, 02, 03, instead of 0, 1, 2, 3. I just need 0 before the number until 10. i know when your doing decimals you can do "%.2f" etc. b...
Indiana asked 31/1, 2013 at 3:14

5

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for my selenium tests I need an value provider to get a 5-digit number in every case. The problem with javascript is that the api of Math.random only supports the generation of an 0. starting float...
Endothelium asked 1/2, 2010 at 8:46

7

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I wish to output large numbers with thousand-separators (commas or spaces) — basically the same as in How to display numeric in 3 digit grouping but using printf in C (GNU, 99). If printf does not...
Perlis asked 15/5, 2012 at 14:16

4

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I simply need to know how to make a regex that accepts a number that has up to 2 digits All I have just now is ^[0-9]{2}$ Which would match a number with exactly 2 digits, but I don't know how...
Milord asked 8/11, 2013 at 16:45

8

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I'm searching for an algorithm for Digit summing. Let me outline the basic principle: Say you have a number: 18268. 1 + 8 + 2 + 6 + 8 = 25 2 + 5 = 7 And 7 is our final number. It's basically a...
Cloraclorinda asked 21/4, 2010 at 22:5

7

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As of C++14, thanks to n3781 (which in itself does not answer this question) we may write code like the following: const int x = 1'234; // one thousand two hundred and thirty four The aim is to ...
Altis asked 4/1, 2015 at 16:38

5

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testing= testing.match(/(\d{5})/g); I'm reading a full html into variable. From the variable, want to grab out all numbers with the pattern of exactly 5 digits. No need to care of whether before/...
Tigress asked 12/2, 2011 at 1:13

6

I want to write a predicate that an integer and a list of digits, and succeed if Digits contain the digits of the integer in the proper order, i.e: ?-digit_lists( Num, [1,2,3,4] ). [Num == 1234]. ...
Anzac asked 16/4, 2013 at 21:22

3

I would like that all numbers generated by my knitr codes don´t look like an oldfashioned calculator. Is there any option to get the numbers like the last one (with ·10 instead of e or E) ? opt...
Furl asked 2/4, 2016 at 18:46

4

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Im using the "De Bruijn" Algorithm to discover the number of digits in binary that a big number (up to 64bits) has. For example: 1022 has 10 digits in binary. 130 has 8 digits in binary. I fou...
Eyla asked 19/2, 2014 at 17:39

9

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For example, getting "5" in "256". The closest I've gotten is Math.floor(256/10)), but that'll still return the numbers in front. Is there any simple way to get what I want or would I have to make ...
Demurrer asked 23/12, 2010 at 23:11

2

I wish to change an integer such as 23457689 to 689, 12457245 to 245 etc. I do not require the numbers to be rounded and do not wish to have to convert to String. Any ideas how this can be done i...
Mola asked 17/2, 2015 at 20:26

0

I am trying to show in my Android application the ARABIC-INDIC DIGIT. So I tried this code, The method I used to display it is showed in the end of the class. public class num extends Activity{ ...
Phlebotomize asked 6/1, 2015 at 9:24

4

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What is the most efficient way to get the digits of a number? Lets begin with an example: Imagine the Fibonacci sequence. Now lets say we want to know which Fibonacci number is the first to have ...
Hardtack asked 28/7, 2014 at 23:12

3

I have lot of digits and I want to add spaces in between them, like so: 0123456789 --> 0 1 2 3 4 5 6 7 8 9 I'm trying to do this using the search and replace function in Sublime Text. What I've t...
Kenton asked 22/6, 2014 at 19:42

2

Solved

I need to filter out only strings that contains only digits and/or a fix set of punctuation. I've tried checking each character and then summing the Boolean conditions to check if it is equal to ...
Ciborium asked 11/2, 2014 at 8:27

7

How do I remove the first digit of an integer? My input is an integer (for example i = 123456789). I then want to remove the first digit, so that i equals 23456789.
Browband asked 4/1, 2014 at 3:2

3

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I am dealing with a math example. I need to use 12 digit number for my code. So which datatype should i use, to use the number in my functions?
Krystalkrystalle asked 13/8, 2010 at 11:29

2

In an application I'm writing I want to display the current date and time, in English, but also in other locales. For example Russian, Arabic and Chinese. // DateTime.ToLongDateString doesn't sup...
Caudex asked 7/8, 2013 at 18:48

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