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GNU APL: Difference between revisions
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Numeric types
m (removed reference to try-GNU-APL online demo - which no longer exists in any fashion) |
(Numeric types) |
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| index origin = 0 or 1 | | index origin = 0 or 1 | ||
| function styles = [[tradfn]], [[dfn]] (limited) | | function styles = [[tradfn]], [[dfn]] (limited) | ||
| numeric types = [[complex]] | | numeric types = [[complex]] float, 64-bit integer | ||
| unicode support = full | | unicode support = full | ||
| released = 2013 | | released = 2013 | ||
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Documents on GNU APL sometimes quote [[Richard Stallman]], who both founded GNU and programmed in APL. However, Stallman is not directly associated with the project. | Documents on GNU APL sometimes quote [[Richard Stallman]], who both founded GNU and programmed in APL. However, Stallman is not directly associated with the project. | ||
== Encoding == | == Encoding == | ||
GNU APL tends to prefer the [[Unicode]] ''Lozenge'' (U+25CA; <syntaxhighlight lang=apl inline>◊</syntaxhighlight>) and ''Element of'' (U+2208; <syntaxhighlight lang=apl inline>∈</syntaxhighlight>) over ''Diamond operator'' (U+22C4; <syntaxhighlight lang=apl inline>⋄</syntaxhighlight>) and ''Small Element of'' (U+220A; <syntaxhighlight lang=apl inline>∊</syntaxhighlight>) which are more commonly used by other dialects. This can lead to [[SYNTAX ERROR]]s if attempting to use code written for GNU APL in other implementations. However, GNU APL also accepts the more common code points. | GNU APL tends to prefer the [[Unicode]] ''Lozenge'' (U+25CA; <syntaxhighlight lang=apl inline>◊</syntaxhighlight>) and ''Element of'' (U+2208; <syntaxhighlight lang=apl inline>∈</syntaxhighlight>) over ''Diamond operator'' (U+22C4; <syntaxhighlight lang=apl inline>⋄</syntaxhighlight>) and ''Small Element of'' (U+220A; <syntaxhighlight lang=apl inline>∊</syntaxhighlight>) which are more commonly used by other dialects. This can lead to [[SYNTAX ERROR]]s if attempting to use code written for GNU APL in other implementations. However, GNU APL also accepts the more common code points. | ||
== Numeric types == | |||
GNU APL supports both 64-bit floats and 64-bit integers, as well as complex numbers whose components are floating-point. The integer type is used when a value can be conveniently determined to have an integer value, in particular when a primitive that is "integer by nature" is called on integer arguments and the result is not too large (GNU reserves a region at the boundary of the 64-bit range where results may be either integer or float).<ref>GNU APL documentation §3.1, [https://www.gnu.org/software/apl/apl.html#System-Limits System Limits]. Accessed 2024-02-22.</ref> Monadic function <syntaxhighlight lang=apl inline>⊤∨</syntaxhighlight> converts near-integer floating-point values to the integer type. Experimental support for rationals, which are ratios of 64-bit integers, can be enabled at compile time. | |||
== External links == | == External links == | ||
* [http://www.gnu.org/software/apl The GNU APL Homepage] | * [http://www.gnu.org/software/apl The GNU APL Homepage] | ||
* [http://lists.gnu.org/archive/html/bug-apl/ The GNU APL Mailing List] | * [http://lists.gnu.org/archive/html/bug-apl/ The GNU APL Mailing List] | ||
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* [https://savannah.gnu.org/svn/?group=apl Help for GNU APL Subversion] | * [https://savannah.gnu.org/svn/?group=apl Help for GNU APL Subversion] | ||
* [http://www.gnu.org/software/apl/Community.html The GNU APL Community] | * [http://www.gnu.org/software/apl/Community.html The GNU APL Community] | ||
== References == | |||
<references/> | |||
{{APL dialects}}[[Category:APL dialects]][[Category:Nested array languages]] | {{APL dialects}}[[Category:APL dialects]][[Category:Nested array languages]] | ||