Bigger than ULONG.. what do I do now?

Last post 10-30-2006 7:52 by jjj. 2 replies.

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10-19-2006 18:17

John
Joined on 10-19-2006
Posts 1

Bigger than ULONG.. what do I do now?

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Hello, I am writing a program that finds primary numbers, I have already hit the limit of what .net variables can hold ulong (18446744073709551615) I need to work with interger (whole numbers) larger than the one mentioned, does anybody have any advaice, would this math.net library help me?

Filed under: intergers primary numbers whole numbers variable limitations

10-20-2006 11:33 In reply to

Christoph Rüegg
Joined on 08-29-2005
Switzerland
Posts 391

Re: Bigger than ULONG.. what do I do now?

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Math.Net indeed will have support for large and arbitrary precision numbers, but it's still under construction (-> Natural class, for big positive integers, but e.g. doesn't support division yet)

In the meantime you may want to have a look at some BigInteger ports to C#, e.g. http://www.codeproject.com/csharp/biginteger.asp

Filed under: Iridium, Numbers, Arbitrary Precision

10-30-2006 7:52 In reply to

jjj
Joined on 07-02-2006
Posts 5

Re: Bigger than ULONG.. what do I do now?

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Meanwhile the decimal structure might be useful, it's 96bit and supports division and all.

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