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Rename "Octave-Forge" to "Octave Forge" (https://lists.gnu.org/archive/html/octave-maintainers/2018-08/msg00138.html).

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.

* Classical functions are extended to interval functions as follows: The result of function f evaluated on interval x is an interval '''enclosure of all possible values''' of f over x where the function is defined. Most interval arithmetic functions in this package manage to produce a very accurate such enclosure.

* 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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|verinverse

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| depends on <code style="color:green">verintervalhull</code>, to be migrated

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|verenclinthull

|style="color:~~red~~green"| free

| to be migrated

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|verhullparam

|style="color:~~red~~green"| free

| depends on <code>verintervalhull</code>, to be migrated

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|verhullpatt

|style="color:~~red~~green"| free

| depends on <code>verhullparam</code>, to be migrated

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|verintervalhull

|style="color:~~red~~green"| free

| to be migrated

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[[Category:Octave~~-~~Forge]]