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675 bytes added ,  20:55, 12 August 2019
Use OctaveForge template.
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{{OctaveForge
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| name = interval
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| logo = [[File:Interval.png|100px]]
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| short description = Real-valued interval arithmetic.
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| version = 3.2.0
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| date = 2018-07-01
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| author 1 name  = Oliver Heimlich
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| author 1 email = <oheim@posteo.de>
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| maintainer 1 name  = Oliver Heimlich
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| maintainer 1 email = <oheim@posteo.de>
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| license = GPL-3.0+
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| group = Community package
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| doc 1 = [https://octave.sourceforge.io/interval/overview.html Function reference]
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| doc 2 = [https://octave.sourceforge.io/interval/package_doc/ User manual]
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| download 1 = [https://octave.sourceforge.io/download.php?package=interval-3.2.0.tar.gz interval-3.2.0.tar.gz]
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| repository 1 = https://octave.sourceforge.io/pkg-repository/interval/
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| dependency 1 = octave &ge; 3.8.0
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| dependency 2 = '''Runtime:''' mpfr (&ge; 3.1.0) [https://packages.debian.org/search?keywords=libmpfr4 libmpfr4 for Debian]
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| dependency 3 = '''Build:''' mpfr (&ge; 3.1.0) [https://packages.debian.org/search?keywords=libmpfr-dev libmpfr-dev for Debian]
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}}
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The GNU Octave interval package for real-valued [https://en.wikipedia.org/wiki/Interval_arithmetic interval arithmetic].
 
The GNU Octave interval package for real-valued [https://en.wikipedia.org/wiki/Interval_arithmetic interval arithmetic].
 
* Intervals are closed, connected subsets of the real numbers. Intervals may be unbound (in either or both directions) or empty. In special cases <code>+inf</code> and <code>-inf</code> are used to denote boundaries of unbound intervals, but any member of the interval is a finite real number.
 
* Intervals are closed, connected subsets of the real numbers. Intervals may be unbound (in either or both directions) or empty. In special cases <code>+inf</code> and <code>-inf</code> are used to denote boundaries of unbound intervals, but any member of the interval is a finite real number.
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* The result of an interval arithmetic function is an interval in general. It might happen, that the mathematical range of a function consist of several intervals, but their union will be returned, e. g., 1 / [-1, 1] = [Entire].  
 
* The result of an interval arithmetic function is an interval in general. It might happen, that the mathematical range of a function consist of several intervals, but their union will be returned, e. g., 1 / [-1, 1] = [Entire].  
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__TOC__
   
[[File:Interval-sombrero.png|280px|thumb|left|Example: Plotting the interval enclosure of a function]]
 
[[File:Interval-sombrero.png|280px|thumb|left|Example: Plotting the interval enclosure of a function]]
 
<div style="clear:left"></div>
 
<div style="clear:left"></div>
    
== Distribution ==
 
== Distribution ==
* [https://octave.sourceforge.io/interval/ Latest version at Octave Forge]
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** <code>pkg install -forge interval</code>
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** [https://octave.sourceforge.io/interval/overview.html function reference]
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** [https://octave.sourceforge.io/interval/package_doc/index.html package documentation] (user manual)
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'''Third-party'''
   
* [https://tracker.debian.org/pkg/octave-interval Debian GNU/Linux], [https://launchpad.net/ubuntu/+source/octave-interval Launchpad Ubuntu]
 
* [https://tracker.debian.org/pkg/octave-interval Debian GNU/Linux], [https://launchpad.net/ubuntu/+source/octave-interval Launchpad Ubuntu]
 
* [https://aur.archlinux.org/packages/octave-interval/ archlinux user repository]
 
* [https://aur.archlinux.org/packages/octave-interval/ archlinux user repository]

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