APL Wiki|
Size: 3857
Comment:
|
← Revision 42 as of 2018-01-17 09:25:47 ⇥
Size: 3473
Comment: Non-commercial licenses don't cost anymore. Fixed a spelling error (proprietory -> proprietary).
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| ## #acl AutoAdminGroup:read,write,admin,delete,revert All:read {{{#!html <div class="borderlesstable"> }}} ||<tableclass="borderlesstable">Back ||[[LearnApl/TutorialContents|Contents]] ||[[LearnApl/TutorialContents|Next]]> || {{{#!html </div> }}} |
|
| Line 2: | Line 13: |
| Line 4: | Line 14: |
|| '''Note to contributors:''' Additions and corrections to this tutorial are welcome. Please keep in mind that it tries to be vendor neutral : where possible examples should work in any version of APL. Please make it clear when code is specific to a particular interpreter. || |
|
| Line 9: | Line 17: |
| It is adapted from an original version written to accompany MicroAPL's APLX interpreter which is available in [[http://www.microapl.co.uk/apl/LearningAPLwithAPLX.pdf|PDF form]]. | It is adapted from an original version written to accompany MicroAPL's APLX interpreter which is not available any more. |
| Line 11: | Line 19: |
| The present version has been slightly modified so that examples should work with a number of APLs, including: | The present version has been slightly modified so that examples should work with a number of APLs, including APL2, APL+Win, Dyalog and NARS2000. |
| Line 13: | Line 21: |
| * [[http://www.microapl.co.uk/apl/|APLX]] from MicroAPL | The core APL language is similar in all these products, although each vendor has added proprietary extensions. Where code is specific to a particular APL interpreter it will usually be indicated in the text. |
| Line 15: | Line 23: |
| * [[http://www.dyalog.com/|Dyalog]] APL | Once you're familiar with the material covered here, you might also want to check out [[LearnMoreApl/FurtherTopics|Further Topics in APL]] which covers some more advanced topics. |
| Line 17: | Line 25: |
| * [[http://www-01.ibm.com/software/awdtools/apl/|APL2]] from IBM * [[http://www.apl2000.com/|APL+Win]] from APL2000 The core APL language is similar in all these products, although each vendor has added proprietory extensions. Where code is specific to a particular APL interpreter it will usually be indicated in the text. |
There is an exception, however: VisualAPL is fundamentally different from the other APLs. It follows a completely different paradigm, and for that reason doesn't fit into this tutorial. See AboutVisualApl for details. |
| Line 26: | Line 30: |
| To download a time-limited evaluation copy of APLX for Windows, Macintosh or Linux, visit MicroAPL's [[http://www.microapl.co.uk/apl/aplx_downloads.html|Download page]] | === Dyalog === To apply for a free educational or non-commercial license of Dyalog APL visit Dyalog's [[http://www.dyalog.com/download-zone.htm|Download zone]] |
| Line 28: | Line 33: |
| To apply for a free educational license, or a cheap (£50/€75) non-commercial copy of Dyalog APL visit Dyalog's [[http://www.dyalog.com/download-zone.htm|Download zone]] | Note that with a default installation of Dyalog, some of the examples won't work: Dyalog offers the system variable `⎕ML` which can be set to various values. Only with `⎕ML←3` all examples will work. See DyalogMigrationLevels for details. |
| Line 30: | Line 35: |
| == Installing the APL font == To display the material in this tutorial properly, you need to ensure that (a) your browser can correctly handle Unicode (UTF-8) encoding, and (b) that you have a suitable APL '''Unicode''' font installed on your system. Note that non-Unicode APL fonts like "Dyalog Std" or "Causeway" won't work! |
=== NARS2000 === NARS2000, an Open Source APL, does not compete against the commercially available APL implementations, but it is a fully-fledged APL implementation. Apart from the last chapter (15) you can do everything mentioned in this tutorial with NARS2000. For details see [[Open Source APL: NARS2000]] |
| Line 33: | Line 38: |
| Most modern Browsers (such as Internet Explorer 6 or later, Firefox v2 or later, Safari v3 or later) should be fine. However, we have found problems using Firefox v2 on the Macintosh (the Windows version is OK, and Firefox v3 on the Macintosh is OK). | === APL2 === To download a time-limited evaluation copy of APL2 for Windows, visit IBM's [[http://www-01.ibm.com/software/awdtools/apl/|Download page]]. |
| Line 35: | Line 41: |
| APL code on this Wiki is encoded using Unicode UTF-8. It should display correctly provided you have at least one of these APL fonts installed on your system: | === APL+Win === APL2000 offer their interpreters 'free' to educational establishments - contact them via their web site. |
| Line 37: | Line 44: |
| * MicroAPL's APLX Upright Unicode font ([[http://www.microapl.co.uk/download/aplx_unicode.ttf|http://www.microapl.co.uk/download/aplx_unicode.ttf]]). If you have installed a desktop version of APLX (full or evaluation copy), you will have this font installed already. | === Misc === |
| Line 39: | Line 46: |
| * Adrian Smith's APL385 Unicode font ([[http://www.vector.org.uk/resource/apl385.ttf|http://www.vector.org.uk/resource/apl385.ttf]]) | The [[FinnAplIdiomLibrary|Finn APL Idiom library]] (for first generation APL) and IBM's APL2 Phrases (for second generation APL) are useful references for students and professionals alike. |
| Line 41: | Line 48: |
If you don't have either of these fonts installed, the Wiki's style sheets are set to fall back on Microsoft's Arial font. Some versions of this font (e.g. the "Arial Unicode MS" version which ships with the international support component of MS Office) do have the APL characters, but it is not a monospaced font. This means that code samples will display the correct characters, but may not be aligned correctly. If you do not have either of the APL fonts listed nor a suitable version of Microsoft's Arial font, APL characters will not display properly. |
== The APL font == To display the material in this tutorial properly, you need to ensure that your browser can correctly handle Unicode (UTF-8) encoding. That should do. |
| Line 50: | Line 54: |
| X „ 3 3½÷¼9 ª Y „ DATA[“DATA] © A comment | X ← 3 3⍴÷⍳9 ⋄ Y ← DATA[⍋DATA] ⍝ A comment |
| Line 53: | Line 57: |
| || {{attachment:apl_font_ok.jpg}} || | |
| Line 54: | Line 59: |
| ||{{attachment:apl_font_ok.jpg}}|| | |
| Line 56: | Line 60: |
| If it looks more like this then you do not have the APL font installed: | (this is a picture, not text; it will '''always''' display APL chars) |
| Line 58: | Line 62: |
| ||{{attachment:apl_font_bad.jpg}}|| | If it looks more like this then something is wrong: |
| Line 60: | Line 64: |
| || {{attachment:apl_font_bad.jpg}} || {{{#!html <div class="borderlesstable"> }}} ||<tableclass="borderlesstable">Back ||[[LearnApl/TutorialContents|Contents]] ||[[LearnApl/TutorialContents|Next]]> || {{{#!html </div> }}} |
|
| Line 61: | Line 77: |
| [[LearnApl/TutorialContents|Next]] > | |
| Line 63: | Line 78: |
| CategoryAboutApl CategoryGuides CategoryAplx |
CategoryAboutApl CategoryGuides |
Learning APL
Contents
This tutorial aims to teach some of the basics of the APL language.
It is adapted from an original version written to accompany MicroAPL's APLX interpreter which is not available any more.
The present version has been slightly modified so that examples should work with a number of APLs, including APL2, APL+Win, Dyalog and NARS2000.
The core APL language is similar in all these products, although each vendor has added proprietary extensions. Where code is specific to a particular APL interpreter it will usually be indicated in the text.
Once you're familiar with the material covered here, you might also want to check out Further Topics in APL which covers some more advanced topics.
There is an exception, however: VisualAPL is fundamentally different from the other APLs. It follows a completely different paradigm, and for that reason doesn't fit into this tutorial. See AboutVisualApl for details.
Trying APL
The APL tutorial will be most effective if you actually try the example code in an APL interpreter. Several vendors provide free or low cost evaluation licenses:
Dyalog
To apply for a free educational or non-commercial license of Dyalog APL visit Dyalog's Download zone
Note that with a default installation of Dyalog, some of the examples won't work: Dyalog offers the system variable ⎕ML which can be set to various values. Only with ⎕ML←3 all examples will work. See DyalogMigrationLevels for details.
NARS2000
NARS2000, an Open Source APL, does not compete against the commercially available APL implementations, but it is a fully-fledged APL implementation. Apart from the last chapter (15) you can do everything mentioned in this tutorial with NARS2000. For details see Open Source APL: NARS2000
APL2
To download a time-limited evaluation copy of APL2 for Windows, visit IBM's Download page.
APL+Win
APL2000 offer their interpreters 'free' to educational establishments - contact them via their web site.
Misc
The Finn APL Idiom library (for first generation APL) and IBM's APL2 Phrases (for second generation APL) are useful references for students and professionals alike.
The APL font
To display the material in this tutorial properly, you need to ensure that your browser can correctly handle Unicode (UTF-8) encoding. That should do.
Here's a sample of text which should display in the APL font:
X ← 3 3⍴÷⍳9 ⋄ Y ← DATA[⍋DATA] ⍝ A comment
It should appear in your browser something like this:
|
(this is a picture, not text; it will always display APL chars)
If it looks more like this then something is wrong:
|
