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→Pairing glyphs with their meaning
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<source lang=apl inline>!</source> is [[Binomial]] in addition to [[Factorial]], as the two are closely related. | <source lang=apl inline>!</source> is [[Binomial]] in addition to [[Factorial]], as the two are closely related. | ||
[[File:I beam HEB 100.png|thumb|[[I-beam]] <source lang=apl inline>⌶</source> does look like an [[wikipedia:I-beam|I-beam]]]] | |||
<source lang=apl inline>⌶</source> ([[I-beam]]) calls system services. APL was originally developed at [[IBM]], so system services were also IBM services. <source lang=apl inline>⌶</source> is an [[wikipedia:I-beam|I-beam]] and ''I-beam'' is pronounced almost identically to ''IBM''. | <source lang=apl inline>⌶</source> ([[I-beam]]) calls system services. APL was originally developed at [[IBM]], so system services were also IBM services. <source lang=apl inline>⌶</source> is an [[wikipedia:I-beam|I-beam]] and ''I-beam'' is pronounced almost identically to ''IBM''. | ||
<source lang=apl inline>@</source> applies a function or substitutes elements ''[[at]]'' specific locations. | <source lang=apl inline>@</source> applies a function or substitutes elements ''[[at]]'' specific locations. | ||
[[File:Bristol Type 223 top-view silhouette.png|thumb|The [[Grade]] glyphs <source lang=apl inline>⍋</source> and <source lang=apl inline>⍒</source> look like [[wikipedia:supersonic transport|supersonic transport]]s.]] | |||
<source lang=apl inline>⍋</source> and <source lang=apl inline>⍒</source> give the indices ([[grade]]s) needed to sort ascending and descending respectively, and look like an ascending and descending supersonic transport, respectively. | <source lang=apl inline>⍋</source> and <source lang=apl inline>⍒</source> give the indices ([[grade]]s) needed to sort ascending and descending respectively, and look like an ascending and descending supersonic transport, respectively. | ||
<source lang=apl inline>⌽</source>, <source lang=apl inline>⊖</source>, and <source lang=apl inline>⍉</source> [[reverse]] or [[transpose]] an array over a given [[axis]]. The <source lang=apl inline>○</source> part of the glyphs symbolise the array, while the line component (<source lang=apl inline>|</source>, <source lang=apl inline>\</source>, or <source lang=apl inline>-</source>) indicates the line across which the reversal/transposal is done. | <source lang=apl inline>⌽</source>, <source lang=apl inline>⊖</source>, and <source lang=apl inline>⍉</source> [[reverse]] or [[transpose]] an array over a given [[axis]]. The <source lang=apl inline>○</source> part of the glyphs symbolise the array, while the line component (<source lang=apl inline>|</source>, <source lang=apl inline>\</source>, or <source lang=apl inline>-</source>) indicates the line across which the reversal/transposal is done. | ||
[[File:TreeLog.jpg|thumb|The [[Log]] glyph <source lang=apl inline>⍟</source> looks like a tree log.]] | |||
<source lang=apl inline>⍟</source> looks like the cross-section of a tree log | <source lang=apl inline>⍟</source> looks like the cross-section of a tree log | ||
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<source lang=apl inline>⊣</source> and <source lang=apl inline>⊢</source> point a finger towards the [[left]] and [[right]], which are exactly the argument they, respectively, return. | <source lang=apl inline>⊣</source> and <source lang=apl inline>⊢</source> point a finger towards the [[left]] and [[right]], which are exactly the argument they, respectively, return. | ||
[[File:Computer console.jpg|thumb|The [[Quad]] glyph <source lang=apl inline>⎕</source> looks like a console.]] | |||
<source lang=apl inline>⎕</source> is the prefix for all [[system name]]s, and also also manages input from the console as well as output to the console. For that, it is a stylised console. <source lang=apl inline>⍞</source> looks like a <source lang=apl inline>⎕</source> with a quote <source lang=apl inline>'</source> indicating [[string]] input and message output. | <source lang=apl inline>⎕</source> is the prefix for all [[system name]]s, and also also manages input from the console as well as output to the console. For that, it is a stylised console. <source lang=apl inline>⍞</source> looks like a <source lang=apl inline>⎕</source> with a quote <source lang=apl inline>'</source> indicating [[string]] input and message output. | ||
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<source lang=apl inline>/</source> and <source lang=apl inline>⌿</source> are also called "by" which can be remembered as reduce by. | <source lang=apl inline>/</source> and <source lang=apl inline>⌿</source> are also called "by" which can be remembered as reduce by. | ||
== Pairing glyphs/functionality with their keyboard locations == | == Pairing glyphs/functionality with their keyboard locations == | ||