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Author Topic: High-bit Math? (128 or 256)  (Read 2253 times)

Renegade

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High-bit Math? (128 or 256)
« on: July 24, 2013, 06:43:34 AM »
There are some calculations that I'd like to run, but I need some extremely big numbers and some extremely small numbers.

So I need something that will facilitate a very large bit-depth for the number types. e.g. 128 bit or 256 bit. I need integers and non-integers.

I only need to do:

  • +
  • - (redundant from above)
  • *
  • / (redundant from above)
  • ^

However, ^ needs to accommodate very small numbers or very precise numbers, e.g.

  • 1.00000000000000000000000000023423423
  • 0.000000000000000000000000000000000000000000000000000000000002342342

An nth root function would be convenient, but isn't needed.

Does anyone know of anything that works and that can help me? Any language is fine by me. Something C-ish would be nice, but I don't care.
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x16wda

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Re: High-bit Math? (128 or 256)
« Reply #1 on: July 24, 2013, 08:14:01 PM »
Did you look at this?
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Renegade

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Re: High-bit Math? (128 or 256)
« Reply #2 on: July 24, 2013, 09:11:25 PM »
Did you look at this?

No. I've not seen that before. I'll look into it. Thanks!
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Jibz

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Re: High-bit Math? (128 or 256)
« Reply #3 on: July 25, 2013, 03:41:35 AM »
There are a number of bignum libraries available for various languages.

A few examples that appear to support float operations are GNU MP, NTL, MAPM.

And if you can restrict your problems to integer math there are a lot more options (even python, which has a built-in arbitrary precision integer type).