numbers

How come when I set 00 as a value like this: $var = 00; it ouputs as 0 when I use it? How can I set 00 so that $var++ would become 01? Numbers in PHP (and virtually all languages) are not stored internally with leading (or in the case of decimal values, trailing) zeros. There are many ways to display your numeric variables with leading zeros In PHP. The simplest way is to convert your value to a string, and pad the string with zero's until it's the correct length. PHP has a function called str_pad to do this for you: $var = 0; $var += 1; // outputs '01' echo str_pad($var, 2, '0', STR_PAD_LEFT)

So if I had the following string: '(01) Kyle Hall - Osc (04) Cygnus - Artereole (07) Forgemasters - Metalic (10) The Todd Terry Project - Back to the Beat (14) Broken Glass - Style of the Street' I could look through the string and push any numbers in the string to an array, which would look like this: [01,04,07,10,14] Use a regular expression: var numbers = str.match(/\d+/g); This will result in ["01", "04", "07", "10", "14"] (array of strings). If the type of the elements matters to you you can follow up with .map(Number) to convert to numbers: var reallyNumbers = str.match(/\d+/g).map

In matlab I want to convert this: 12345.6788993442355456789 into a vector [1 2 3 4 5 6 7 8 8 9 9 3 4 4 2 3 5 5 4 5 6 7 8 9] I have found several solutions to convert a integer into a vector using commands like scanf, num2str,... but those don't fit with non-integers, and some solutions have problems with numbers with a large number of decimal places... That kind of conversion is needed because I want to see and use all of the digits of the number. Andrew Janke What input source are you getting those numbers from? And are all those digits significant? Your example numbers are already beyond the

I currently use this regex: (\d+) the problem that i can get 2 strings: "2112343 and alot of 4.99" OR "4.99 and alot of 2112343 " I get this from both: [2112343, 4, 99] I need to get only the 2112343 ... How can i achieve this? Using lookaround, you can restrict your capturing to only digits which are not surrounded by other digits or decimal points: (?<![0-9.])(\d+)(?![0-9.]) Alternatively, if you want to only match stand-alone numbers (e.g. if you don't want to match the 123 in abc123def ): (?<!\S)\d+(?!\S) If I understand you right, you want to match those numbers with a point inside, too,

Looking to make a really simple random number generator method in C. The numbers should be between 0 and 24 and can be for example 14.5f. Any help would be great, thanks! float getRand() { float rnd = rand(); rnd /= RAND_MAX; return rnd * 24.0f; } Make sure you seed the random number generator with srand before use. The Mersenne_twister is not only very simple, but also very strong. See the code on the link. However, if you can use GPL License , use the The GNU Scientific Library (GSL) specific check Random-Number-Generator-Examples from Random-Number-Generation part of the manual There are

All answers I seem to find on how to find the 1s (flip the bits of the positive) and the 2s (flip the bits of the positive binary and add 1) complement doesn't seem to answer my question. My homework assignment asks to find the complement of a negative number.. So instead of starting out with a positive, and needed to find out what its negative is, I am given a negative number and asked to find its complement. One silly thought is, do I find the positive value binary value, then flip the bits to get my negative number, then flip it again to find my 1s complement of the negative number?? It

I am saving values to a .csv file in NXC(Not eXactly C) and then calling on them ata later point in time. The problem I am having is when calling any negative values back from a cell it is displayed as 0123 instead of -123 which is throwing all my additional calculations off. The current code is: OpenFileRead("map.csv", fSize, count); until (eof == true) { ReadLnString(count, val); int lstFwd = StrToNum(val); NumOut(0,LCD_LINE1,lstFwd); } while(true); Can anyone explain how to rectify this issue as it is causing me a great deal of stress now. StrToNum should convert negativ numbers. Its a bit