Re: Complex square root of -1 : zsqrt(-1)

From	minforth@gmx.net (minforth)
Newsgroups	comp.lang.forth
Subject	Re: Complex square root of -1 : zsqrt(-1)
Date	2024-09-06 08:14 +0000
Organization	novaBBS
Message-ID	<cfcfa843f122a3ccc9a231bf6850290a@www.novabbs.com> (permalink)
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Better avoid calling external libraries for transcendental
functions. Calculation of fhypot is much faster and more accurate.

It is based on the calculation of fp square roots for which
there are very fast algorithms. E.g.
https://en.wikipedia.org/wiki/Fast_inverse_square_root

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Complex square root of -1 : zsqrt(-1) melahi_ahmed@yahoo.fr (ahmed) - 2024-08-25 08:34 +0000
  Re: Complex square root of -1 : zsqrt(-1) Ron AARON <clf@8th-dev.com> - 2024-08-25 18:38 +0300
  Re: Complex square root of -1 : zsqrt(-1) minforth@gmx.net (minforth) - 2024-08-25 16:50 +0000
  Re: Complex square root of -1 : zsqrt(-1) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-08-25 17:13 +0000
    Re: Complex square root of -1 : zsqrt(-1) melahi_ahmed@yahoo.fr (ahmed) - 2024-08-25 17:38 +0000
      Re: Complex square root of -1 : zsqrt(-1) Krishna Myneni <krishna.myneni@ccreweb.org> - 2024-08-25 16:04 -0500
      Re: Complex square root of -1 : zsqrt(-1) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2024-08-28 08:36 +0000
        Re: Complex square root of -1 : zsqrt(-1) melahi_ahmed@yahoo.fr (ahmed) - 2024-08-28 11:33 +0000
          Re: Complex square root of -1 : zsqrt(-1) melahi_ahmed@yahoo.fr (ahmed) - 2024-08-28 14:49 +0000
            Re: Complex square root of -1 : zsqrt(-1) mhx@iae.nl (mhx) - 2024-08-28 17:39 +0000
              Re: Complex square root of -1 : zsqrt(-1) melahi_ahmed@yahoo.fr (ahmed) - 2024-08-28 19:38 +0000
                Re: Complex square root of -1 : zsqrt(-1) melahi_ahmed@yahoo.fr (ahmed) - 2024-08-28 19:49 +0000
                Re: Complex square root of -1 : zsqrt(-1) mhx@iae.nl (mhx) - 2024-08-28 21:42 +0000
                Re: Complex square root of -1 : zsqrt(-1) melahi_ahmed@yahoo.fr (ahmed) - 2024-08-28 22:10 +0000
                Re: Complex square root of -1 : zsqrt(-1) melahi_ahmed@yahoo.fr (ahmed) - 2024-08-28 22:17 +0000
                Re: Complex square root of -1 : zsqrt(-1) mhx@iae.nl (mhx) - 2024-08-28 23:04 +0000
                Re: Complex square root of -1 : zsqrt(-1) melahi_ahmed@yahoo.fr (ahmed) - 2024-09-06 07:11 +0000
                Re: Complex square root of -1 : zsqrt(-1) minforth@gmx.net (minforth) - 2024-09-06 08:14 +0000
                Re: Complex square root of -1 : zsqrt(-1) minforth@gmx.net (minforth) - 2024-09-06 08:20 +0000
                Re: Complex square root of -1 : zsqrt(-1) melahi_ahmed@yahoo.fr (ahmed) - 2024-08-28 21:45 +0000
  Re: Complex square root of -1 : zsqrt(-1) Krishna Myneni <krishna.myneni@ccreweb.org> - 2024-08-25 14:08 -0500
    Re: Complex square root of -1 : zsqrt(-1) Krishna Myneni <krishna.myneni@ccreweb.org> - 2024-08-25 14:16 -0500

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