Questions for numbers


691

How can I write a .htaccess redirect to find all numbers?

I'm trying to figure out a regular expression that will find some numbers in a URL and use them in the URL I redirect to.
9112

How safe is comparing numbers in lua with equality operator?

In my engine I have a Lua VM for scripting. In the scripts, I write things like:
9634

How does Perl decide to treat a scalar as a string or a number?

Consider the following code and its output:
9648

python search string for numbers, put brackets around them

I'm trying to search a string for numbers, and when finding them, wrap some chars around them, e.g.
6567

Formatting currency in String from different locale currency formats

I have a java string variable in my groovy app. The variable contains a user input of price in possibly different currency formats:
9481

Preventing overlap of number ranges

I failed at this problem for several hours now and just can't get my head around it. It seems fairly simple from a "human" POV, but somehow I just can't seem able to write it into code.
954

Number types emulation on javascript

I wonder if there is any library to emulate the native type numbers on other languages, like int and double. The library should emulate those types accurately, including overflow.
9497

How to take off line numbers in Vi?

For displaying line numbers in a file, I use command:
3108

Oracle Floats vs Number

I'm seeing conflicting references in Oracles documentation. Is there any difference between how decimals are stored in a FLOAT and a NUMBER types in the database?
5610

PHP json_decode integers and floats to string

I want to pre-parse a json an convert all numbers in the json (integers or float) to strings.
8588

Numeric Captcha for PHP

Is there a numeric captcha available for PHP?
3595

Prolog find maximum even number in the list

I need to find max even number in the list. For example
1658

JavaScript get number from string

I have a string in javascript like `#box2' and I just want the '2' from it.
7933

dart, total available string characters?

I'm not familiar with character sets and whether languages pick them up from their environments or if they are baked into the language itself, I wanted to make a simple number system in dart that h...
1715

Java : large integer numbers error

I am trying to do the following math equation in Java:
9523

How i can round to the nearest 60 sec interval in MySQL

I got a table that have records of calls. The detail have the the phone_number and call_time in milliseconds. Which could be the SQL statement to have a column with the rounded call_time to the nea...
6076

Convert Input Value to Integer or Float, as Appropriate Using Ruby

I believe I have a good answer to this issue, but I wanted to make sure ruby-philes didn't have a much better way to do this.
7831

Generating random number strings on the same page

I'm trying to add about 20 separate random generated number strings between 55 and 999 on a single page, is this possible? I have tried appending the element ID from "randomnumber" to randomnumber2...
3067

NSUInteger in iOS7

I'm having a really weird problem here with NSUInteger in iOS7,
7479

UITextField - Allow only numbers and punctuation input/keypad

I have tried the code below but that only allows for numbers on the keypad to be inputted. My app requires the keypad to use a period/full stop (for money transactions). The code I tried is:
5266

How to generate random numbers with rand() without time.h in C

How to generate random numbers with rand() and srand() without time.h in C ?
7116

C++ How to create two seperate objects that display random numbers 10 times?

The program I am trying to write is to create two objects to display random numbers between 1000-9000 and 100-900 respectively.
658

issue with self made random number generator in python. (using time.time())

I am well aware that python has a built in random library, so please do not include any reference to it in this. I am taking a do-it-yourself approach using time.time(). I made a simple random num...
829

java convert GB, Mb, KB, and byte to double with precision

Im downloading files in various sizes and like to
6492

setter/getter not working for Number literal

I thougt it would be fun to rewrite my zero padding extension to the Number.prototype into a genuine getter/setter pattern. Not very difficult. I ended up with this code (addSetter and addGetter ar...
9395

c# number shaper for money amount like convert int 12333545 = 12,333,545

What is the easiest and fastest way of converting string or int to the money format
4547

Display Amount in Words in vb.net

I have a column called FeeAmount in my table.
3797

PHP Regex Separate Number from String

I have the following string: 01SOMECOMPANY and I want to end up with 01 SOMECOMPANY. How do I do this using regular expressions?
5000

What is the smallest positive floating point value?

How can I express a number in Objective-C "infinitely" close to zero but still larger. Essentially I want the smallest positive number.
7653

Integer distance

As a single operation between two positive integers we understand multiplying one of the numbers by some prime number or dividing it by such (provided it can be divided by this prime number
7764

BitConverter VS ToString for Hex

Just wondering if someone could explain why the two following lines of code return "different" results? What causes the reversed values? Is this something to do with endianness?
9663

Javascript using prototype how can I set the value of “this” for a number?

So if we can get past the "should you?" question ... does anyone know how to set the value of an integer in prototype?
1430

Sort a list with a specific way

I have a list of number in my database and wanna list them like this:
2366

i m trying to generate random number but every time i am getting error ‘ranf’ was not declared in this scope

here is the code which is giving error 'ranf' was not declared in this scope.
8713

Determine if a string is an integer or a float in ANSI C

Using only ANSI C, what is the best way to, with fair certainty, determine if a C style string is either a integer or a real number (i.e float/double)?
7586

Regex: Lookahead and lookbehind, checking a . (dot) for use as decimal vs full-stop

I've had a good look around the net for an answer to this, but can't seem to get it working.
8525

What is the most exact Java type to describe a Number

Assuming that performance is not an issue, and knowing that I only want to use ONE type for all the numbers I have in my program, which type will be the correct one to use? I think that BigDecimal is
6144

The mt_rand() function of PHP returns only 2^31 different random numbers. How does it modify the normal Mersenne twister?

I implemented Mersenne twister in java, and it can generate 32 bit uniformly distributed random numbers in the closed interval [Integer.MIN_VALUE,Integer.MAX_VALUE].
4997

How can I convert a number to its English form in Perl?

I need a Perl script which takes numbers as input example 222
1199

Java Negative of a Number Instance

I have a class like this:
7910

Compress a very large number (in Python)

I need a very very very large number (143 millions digits) to be compressed. I'm looking for a solution that compresses it without loss to at least 10% of it. I've tried zlib, zipfile, gzip, and so...
6150

Check every possible combination of numbers against one

I currently load numbers into an array, these are always different numbers and there can be any amount of them, here is an example;
8350

PHP: Converting an url variable number to a number

I'm trying to send a number from a page to another on in order to save it on my database, but when I use number_format method the number is converted to 0:
1241

what is the difference between the java.lang.Math class and the java.Math class

I am trying to figure out which 'Library' the BigDecimal Class resides in. When I read the referencing information it says this:
9916

In swift, how do I do this?

My English is not enough to search the question. So, I have to write here. My integer is 600000000 for ex. I want to convert it like this: 600,000,000. How do I do this?
5123

Complex regular expression to handle number sequence

Hi I have been upto a difficult regular expression to handle of which I have very limited knowledge. It would be great if someone can let me understand how to interprete such problem:
4726

How to accurately convert numbers to strings in JavaScript

JavaScript stores all numbers in double-precision floating-point format, with a 52-bit mantissa and an 11-bit exponent (the IEEE 754 Standard for storing numeric values), and therefore its
3450

How to write a function to generate random number 0/1 use another random function?

If I have a function named rand1() which generates number 0(30% probability) or 1(70% probability), how to write a function rand2() which generates number 0 or 1 equiprobability use rand1() ?
7514

Are there are any side effects of using this method to convert a string to an integer

Are there any side effects if i convert a string to a number like below..

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