APL logo: Difference between revisions

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[[File:APL_logo_light.png|120px|frameless|left]]

This is a cube, which is a common APL motif, e.g. used for [[APL2]] (including the book [[Books#APL2_at_a_Glance|APL2 at a glance]]), [[APL*PLUS]] and [[Dyalog APL]]. However, one quarter has been modified to resemble a leaf, thus making the cube into an [[apple]], another common association with APL. The leaf is supposed to hint at the [[Del]] which symbolises [[function]] definition and has been used in application icons for [[APL+]] and [[APLX]]. The green colours come from [[IBM]]'s modern '''Carbon''' design to honour IBM's role APL's history. The lettering spells out "APL" while also hinting at APL's usage of special [[glyphs]]; here <code>⍝⍴⌊</code> which look very close to the forms found in the widespread ''APL385 Unicode'' [[font]].

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[[File:Nested bitmaps logo dark.png|120px|frameless|left]]

[[File:Alternative nested bitmaps.png|frameless|right|Alternative nested bitmap logos]][[File:Nested bitmaps logo.png|120px|frameless|left]]

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[[File:Script logo.png|120px|frameless|left]]

[[File:Script logo filled.png|120px|frameless|right]]

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[[File:Parallel Lines.png|120px|frameless|left]]

This logo is from the cover of the original edition of Paul Berry's [[SHARP APL]] Reference Manual.

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[[File:Ligature Original.jpg|120px|frameless|left]]

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[[File:Display matrix.png|120px|frameless|left]]

This is the output from the classic <source lang=apl inline>DISPLAY</source> function when applied to the matrix <source lang=apl inline>1 3⍴APL</source>.

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[[File:QuadAPLAlt.png|90px|frameless|left]]

[[File:QuadAPL.png|90px|frameless|right]]

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[[File:DirectionAndMagnitude.png|120px|frameless|left]]

The colors are taken from the Canadian flag.

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[[File:50yearsapple.png|120px|frameless|left]]

This is based on the logo that [[Dyalog Ltd.]] commissioned for [https://www.dyalog.com/50-years-of-apl.htm APL's 50th anniversary], which was inspired by the  

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[[File:APL_Wiki_Touch_Square.png|120px|frameless|left]]

The [[APL Wiki logo]] encapsulates features of APL, is visually striking and takes an interesting new approach over traditional apple or cube designs. Its use here has already established its independent, community-wide use. It works in a variety of sizes and its simple black and white palette makes it suitable for all media forms. It could be enhanced with the letters A P L either underneath, or within the middle dots of the middle row.

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[[File:Plain Ellipse.png|120px|frameless|left]]

This is a plain ellipse designed by Juda Brudzewsky. It is similar to the logo of [[wikipedia:PHP (programming language)|PHP]], using the warning red from IBM's Carbon design. The font is reminiscent of [[wikipedia:Clarendon (typeface)|Clarendon]] used for the covers of IBM's manuals at the time when APL first appeared. Note that [[APL\360]]'s name was originally always styled in italics, technology permitted.

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[[File:Angular Textured Apple.png|120px|frameless|left]]

This apple-based logo is designed by Aaron Brudzewsky. It uses realistic textures exclusively, for a crisp fresh look. The angles and orthogonally constructed letters hint at APL's emphasis on orthogonal [[array]]s.