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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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SQL - is BIGINT datatype always 8 bytes?

I know BIGINT can store a 8byte numbers. I want to store numbers with length 12 (Fixed length). So using INT is impossible. If I store a number like153159842655, How much storage it takes ? Is it always 8byte or depends on number ? Second question…
AliN11
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BigInteger value from SQL DB in wrong format

If I start my android app the app calls some data from a DB and save this data on the local SQL DB on the device. There is one value with a big number so I need BigInteger to store it. If I try to call that value from the local DB I get the…
WeSt
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Define struct in the heap with different sizes

I am trying to implement a bigInt library. I have been checking other libraries like GMP, ttmaht or libtommath but any of them fulfill the requirements of the project (because licenses, because they only use the stack, etc) I will follow the…
JomsDev
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I can't convert Hex to BigInteger

I tried to convert Hex to BigInteger, here is source code: public static void main (String[] args) { BigInteger a = new…
Jinseo Kim
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Can't access System.Numerics from within a Xamarin Android project

I am attempting to use the System.Numerics.BigInteger struct from within a Xamarin.Android project, but the System.Numerics namespace is not accessible, despite having installed the latest version of the Nuget package that claims to contain…
Tim Coulter
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Simple C example of add/sub/mul/div operations in double-precision floating-points using a single-precision Floating-point system

I am working on an algorithm which requires calculations in large numbers, upto e+30. I am using a 32 bit system with compiler support of 32 bits for long/float/double. So far, by searching online, I've learned that single-precision floating points…
Rishit
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How to convert binary to decimal using BigInteger?

I am trying to print decimal number from binary number using BigInteger class. I am using BigInteger(String val, int radix) constructor of BigInteger class to convert given binary value to decimal but it is printing the exact binary value which is…
Ankit Srivastava
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unsigned long long addition with multiple operands

unsigned long long a = 18446744073709551615 unsigned long long b = 18446744073709551614 unsigned long long c = 18446744073709551613 unsigned long long d = 18446744073709551612 unsigned long long e = 18446744073709551611 I'd like to add a+b+c+d+e…
Mint.K
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Bit manipulation for big integer classes?

I'm having a problem coming up with an algorithm for a big integer class in C++. My initial idea was using arrays/lists, but it's very inefficient. I then discovered about things like the following…
Lockhead
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Use Biginteger in VB

Where to get Biginteger modules and how import them into visual basic that is part of ms access? I wish to work with (very) large integers in visual basic and avoid the integer overflows. Reportedly there are Biginteger modules that can be used for…
Maestro13
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Golang: help understanding pointers, assignment, and unexpected behavior

So I am back with more beginner questions that I can not seem to wrap my head around. I was experimenting with the following code. func main() { start := time.Now() var powers []*big.Int for i := 1; i < 1000; i++ { I := big.NewInt(int64(i)) …
Stephen Adams
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Turning an InputStream into BigInteger

public static void main(String[] args) throws IOException { // TODO Auto-generated method stub // Load file with 17 million digit long number BufferedReader Br = new BufferedReader (new FileReader("test2.txt")); String Line =…
Samantha Clark
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Java RSA Input encrypted Text and decrypt it.(BigINteger)

I spent a day to check out a lot of combinations of this last lines of my code but I'absolutely not going to understand how i can get an encrypted Input as BigInteger and decrypt it to a String... So this is the last block of the Code: package…
user7998714
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Parsing binary to BigInteger in VB .NET?

How are you? I wrote a program manipulating big binary chains (string variables). This said manipulation requires me to store my chains in a variable so I can use them as numbers. The only variable type that I have found big enough to store such…
user7831458
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Using Large Integer and decimal data types in SAP HANA

I came across the following article https://blogs.saphana.com/2013/04/07/best-practices-for-sap-hana-data-loads/ and was wondering why it is a good practice not to use large integer and decimal types as data types for columns in HANA, the reason…
Shubha Lakshmi
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