https://wiki.nars2000.org/index.php?action=history&feed=atom&title=Implementation_Comparisons
Implementation Comparisons - Revision history
2026-05-08T08:20:36Z
Revision history for this page on the wiki
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https://wiki.nars2000.org/index.php?title=Implementation_Comparisons&diff=3758&oldid=prev
WikiSysop at 17:58, 7 April 2020
2020-04-07T17:58:16Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:58, 7 April 2020</td>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">==Features Missing in NARS2000==</ins></div></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><ul></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> <li>Selective Assignment: The syntax of <apll>(...)←...</apll> where the code inside of the parens selects elements of a named array is missing from NARS2000. It may be emulated by using Indexed Assignment:</ins></div></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">|Dyalog:||<apll>((⊂ L)⌷R)←...</apll></ins></div></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">==Differences With Dyalog APL==</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Different designers make different choices. Neither should be considered Good or Bad, just different. Here are a few of the differences between Dyalog APL and NARS2000:</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Different designers make different choices. Neither should be considered Good or Bad, just different. Here are a few of the differences between Dyalog APL and NARS2000:</div></td></tr>
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WikiSysop
https://wiki.nars2000.org/index.php?title=Implementation_Comparisons&diff=3756&oldid=prev
WikiSysop: WikiSysop moved page Implementation Differences to Implementation Comparisons without leaving a redirect: Expanded meaning
2020-04-07T17:46:46Z
<p>WikiSysop moved page <a href="/index.php?title=Implementation_Differences&action=edit&redlink=1" class="new" title="Implementation Differences (page does not exist)">Implementation Differences</a> to <a href="/index.php?title=Implementation_Comparisons" title="Implementation Comparisons">Implementation Comparisons</a> without leaving a redirect: Expanded meaning</p>
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<td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:46, 7 April 2020</td>
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WikiSysop
https://wiki.nars2000.org/index.php?title=Implementation_Comparisons&diff=3754&oldid=prev
WikiSysop: Created page with "Different designers make different choices. Neither should be considered Good or Bad, just different. Here are a few of the differences between Dyalog APL and NARS2000: <ul..."
2020-04-06T17:43:14Z
<p>Created page with "Different designers make different choices. Neither should be considered Good or Bad, just different. Here are a few of the differences between Dyalog APL and NARS2000: <ul..."</p>
<p><b>New page</b></p><div>Different designers make different choices. Neither should be considered Good or Bad, just different. Here are a few of the differences between Dyalog APL and NARS2000:<br />
<br />
<ul><br />
<li>Multi-name assignment in Dyalog does not require parens, whereas NARS2000 does<br /><br />
{|<br />
|-<br />
|Dyalog:||<apll> i j ←⍺</apll><br />
|-<br />
|NARS2000:||<apll>(i j)←⍺</apll><br />
|}<br />
</li><br />
<li>A Train assigned to a name does not require parens in Dyalog, but are required in NARS2000<br /><br />
{|<br />
|-<br />
|Dyalog:||<apll>e← -phi grad</apll><br />
|-<br />
|NARS2000:||<apll>e←(-phi grad)</apll><br />
|}<br />
</li><br />
<li>Dyalog's definition of the monadic function <apll>↑</apll> depends upon the value of <apll>⎕ML</apll> (<apll>⎕ML&lt;2</apll> is Mix, <apll>⎕ML≥2</apll> is First), whereas NARS2000 uses the monadic function <apll>⊃</apll> for Mix and <apll>↑</apll> for First<br /><br />
{|<br />
|-<br />
|Dyalog:||<apll>csc←{sign↑⍳n⍴n←⍴⍵}</apll><br />
|-<br />
|NARS2000:||<apll>csc←{sign⊃⍳n⍴n←⍴⍵}</apll><br />
|}<br />
</li><br />
<li>I'm not sure about Dyalog, but I know that NARS2000 does not have the concept of Rank well-integrated into its implementation.</li><br />
<li>The Binding Strength Rules are different. In NARS2000, a numeric strand as the right operand to an operator must be enclosed in parens<br /><br />
{|<br />
|-<br />
|Dyalog:||<apll>⍤ 0 1</apll><br />
|-<br />
|NARS2000:||<apll>⍤(0 1)</apll><br />
|}<br />
</li><br />
</ul></div>
WikiSysop