Fonts

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With the prevalence of Unicode, many systems render APL legibly out-of-the-box. However, for a uniform appearance, the font should be designed with APL in mind.[1] This article lists some fonts that are suited for APL.

Monospace

Name
(website)
Source
(download)
Description Sample
APL2 Unicode IBM Straight from IBM typewriter terminals with oblique letters.
APL385 Unicode Adrian Smith A fun, whimsical look, inspired by Comic Sans Serif.
APL386 Unicode GitHub APL385 Unicode with fewer issues and more accented characters.
BQN386 Unicode GitHub Re-hinted APL386 Unicode with harmonised glyphs and support for BQN.
APLX Upright Dyalog A monospaced grotesque font, reminiscent of Akzidenz-Grotesk.
Courier APL2 Unicode IBM The classic Courier typewriter font, extended with APL symbols.
DejaVu BQN Sans Mono GitHub DejaVu Sans Mono with support for BQN.
DejaVu Sans Mono GitHub Wide range of characters with original look and feel of Vera.
DejaVu Sans Mono Bront GitHub DejaVu Sans Mono tweaked to be better geared for programming.
DejaVu Sans Mono Nerd AUR DejaVu Sans Mono patched with a high number of extra glyphs.
Everson Mono Evertype (shareware) Simple, elegant font, quite legible at sizes as small as 4 points.
Fairfax KreativeKorp Regular/Bold/Italic 6×12 bitmap font supporting many characters.
Fairfax Serif Serif 6×12 bitmap font supporting many characters.
Fairfax HD KreativeKorp Plotter-like font supporting many characters.
IBM 3270 GitHub Modern version of a classic IBM terminal font.
Iosevka Anonymous Pro Style GitHub A slender monospace sans-serif and slab-serif typeface inspired by Pragmata Pro, M+ and PF DIN Mono.
Iosevka Fira Mono Style GitHub
Iosevka Pragmata Pro Style GitHub
Iosevka Source Code Pro Style GitHub
Iosevka JetBrains Mono Style GitHub
Iosevka IBM Plex Mono Style GitHub
Iosevka Recursive Mono Style GitHub
poultreMono Codeberg Quirky 5×9 pixel font.
PragmataPro (commercial) A condensed font optimized for coding, math and engineering.
SAX2 GitHub Curly font with italic letters, based on Sharp APL for Unix.
SImPL Vector Courier-based, but thicker.

Proportional

Name
(website)
Source
(download)
Description Sample
APL333 Adrian Smith Proportionally spaced version of APL385 Unicode
Code2000 FontSpace Quirk serif pan-Unicode font.
Iosevka Aile GitHub Proportionally spaced version of Iosevka.
Iosevka Etoile GitHub Proportionally spaced slab-serif version of Iosevka.
Quivira Website Serif font supporting many symbols, similar to Garamond.
Segoe UI Symbol (commercial) Microsoft's humanist interface and corporate font.
Stix Two Math GitHub Serif font, broadly compatible with Times New Roman.
 
The APL typeball

Historical anecdote

Using IBM's APL\360 required the use of the IBM 2741 or IBM 1050 printing terminal with an APL type ball. The APL2741 font is based directly on this type ball.

References

  1. Phil Chastney: APL fonts are different
APL development [edit]
Interface SessionTyping glyphs (on Linux) ∙ FontsText editors
Publications IntroductionsLearning resourcesSimple examplesAdvanced examplesMnemonicsISO 8485:1989ISO/IEC 13751:2001A Dictionary of APLCase studiesDocumentation suitesBooksPapersVideosAPL Quote QuadVector journalTerminology (Chinese, German) ∙ Neural networksError trapping with Dyalog APL (in forms)
Sharing code Backwards compatibilityAPLcartAPLTreeAPL-CationDfns workspaceTatinCider
Implementation ResourcesOpen-sourceMagic functionPerformanceAPL hardware
Developers Timeline of corporationsAPL2000DyalogIBMIPSASTSC