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Questions tagged [biginteger]

BigInteger is an arbitrary-precision arithmetic type in Java, C#, and other languages. It behaves like a signed integer whose size is limited only by available memory.

BigInteger is an arbitrary-precision arithmetic type in the .NET Framework, Java, and other languages. It behaves like a signed integer whose size is limited only by available memory.

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How to convert strings to bigInt in JavaScript

I need to convert a string to BigInt like BigInteger in Javascript Example var reqId = "78099864177253771992779766288266836166272662"; var result = parseInt(reqId); document.write(result); Resultant value not matching since JavaScript only allows…
rselvaganesh
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How to convert BigInteger to String in java

I converted a String to BigInteger as follows: Scanner sc=new Scanner(System.in); System.out.println("enter the message"); String msg=sc.next(); byte[] bytemsg=msg.getBytes(); BigInteger m=new BigInteger(bytemsg); Now I want my string back. I'm…
condinya
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java.math.BigInteger cannot be cast to java.lang.Long

I've got List dynamics. And I want to get max result using Collections. This is my code: List dynamics=spyPathService.getDynamics(); Long max=((Long)Collections.max(dynamics)).longValue(); This is my getDynamics: public…
Tony
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Logarithm for BigInteger

I have a BigInteger number, for example beyond 264. Now i want to calculate the logarithm of that BigInteger number, but the method BigInteger.log() does not exist. How do I calculate the (natural) logarithm of my large BigInteger value?
RAVITEJA SATYAVADA
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byte[] to unsigned BigInteger?

Motivation: I would like to convert hashes (MD5/SHA1 etc) into decimal integers for the purpose of making barcodes in Code128C. For simplicity, I prefer all the resulting (large) numbers to be positive. I am able to convert byte[] to BigInteger in…
Doochz
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Where is my System.Numerics namespace?

I'm using Visual Studio 2010 and trying to use the BigInteger type in a C# program. This type is supposed to be available in System.Numerics namespace, but I don't seem to have that installed in the .Net 4.0 framework. When I type "using…
Kevin
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BigInteger.pow(BigInteger)?

I'm playing with numbers in Java, and want to see how big a number I can make. It is my understanding that BigInteger can hold a number of infinite size, so long as my computer has enough Memory to hold such a number, correct? My problem is that…
PeterW
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How to deal with big numbers in javascript

I'm looking for a Mathematical solution that deals with really (long, big, huge, storms) numbers. I haven't found anything yet, But I don't wanna think that this problem hasn't be solve at this time. I'm looking for an easy Number solution, like…
crsuarezf
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C++ handling very large integers

I am using the RSA Algorithm for encryption/decryption, and in order to decrypt the files you have to deal with some pretty big values. More specifically, things like P = C^d % n = 62^65 % 133 Now that is really the only calculations that ill be…
Tomek
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Why is this long overflowing to -1, instead of the minimum value for the type?

I have the following code that returns the number of nodes in a tree when a complete Binary Tree is layer layers tall: public static long nNodesUpToLayer(int layer) { if (layer < 0) throw new IllegalArgumentException( "The layer…
Carcigenicate
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java: how for loop work in the case of BigInteger

I want to take Input from the user as Big-Integer and manipulate it into a For loop BigInteger i; for(BigInteger i=0; i<=100000; i++) { System.out.println(i); } But it won't work can any body help me.
Sanjeev
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Converting BigInteger to binary string

Can we convert Biginteger to binary string String s1 = "0011111111101111111111111100101101111100110000001011111000010100"; String s2 = "0011111111100000110011001100110011001100110011001100110011001100"; BigInteger bi1, bi2, bi3; bi1 =…
Kailash
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Why can Haskell handle very large numbers easily?

Hugs>…
n00ki3
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How to divide two native JavaScript BigInt's and get a decimal result

Here's what I've tried so far. I'm looking to get a 12.34: BigInt('12340000000000000000') / BigInt('1000000000000000000') 12n Number(BigInt('12340000000000000000') / BigInt('1000000000000000000')) 12 FWIW, when I use the JSBI lib, it's working…
robmisio
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How can I convert an absolutely massive number to a string in a reasonable amount of time?

This is quite an odd problem I know, but I'm trying to get a copy of the current largest prime number in a file. Getting the number in integer form is fairly easy. I just run this. prime = 2**74207281 - 1 It takes about half a second and it works…
Daffy
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