https://wiki.haskell.org/index.php?title=Physical_units/Dimensionalized_numbers&feed=atom&action=history
Physical units/Dimensionalized numbers - Revision history
2024-03-19T06:05:39Z
Revision history for this page on the wiki
MediaWiki 1.35.5
https://wiki.haskell.org/index.php?title=Physical_units/Dimensionalized_numbers&diff=23202&oldid=prev
Henk-Jan van Tuyl at 14:47, 30 September 2008
2008-09-30T14:47:43Z
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<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>I have created a simple toy example using [[functional dependencies]] and [[phantom type]]s to do compile-time unit analysis error</div></td>
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Henk-Jan van Tuyl
https://wiki.haskell.org/index.php?title=Physical_units/Dimensionalized_numbers&diff=23201&oldid=prev
Lemming: remove link to Physical units, we have now sub-directory
2008-09-30T14:36:06Z
<p>remove link to Physical units, we have now sub-directory</p>
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<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;"></td>
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<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>See also the more polished http://www.scannedinavian.org/cgi-bin/darcs.cgi/hlibs/physics/?c=browse. It uses a different trick to get negative numbers -- instead of using positional numbers with negative digits, it uses pairs of PeanoNumbers to represent the difference between them, and normalizes to at least one of them being zero.</div></td>
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<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>See also the more polished http://www.scannedinavian.org/cgi-bin/darcs.cgi/hlibs/physics/?c=browse. It uses a different trick to get negative numbers -- instead of using positional numbers with negative digits, it uses pairs of PeanoNumbers to represent the difference between them, and normalizes to at least one of them being zero.</div></td>
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Lemming
https://wiki.haskell.org/index.php?title=Physical_units/Dimensionalized_numbers&diff=23199&oldid=prev
Lemming: Dimensionalized numbers moved to Physical units/Dimensionalized numbers
2008-09-30T14:35:26Z
<p>Dimensionalized numbers moved to Physical units/Dimensionalized numbers</p>
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Lemming
https://wiki.haskell.org/index.php?title=Physical_units/Dimensionalized_numbers&diff=23193&oldid=prev
Lemming: link to Physical units
2008-09-30T14:28:34Z
<p>link to Physical units</p>
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<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>* [[Physical units]]</div></td>
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Lemming
https://wiki.haskell.org/index.php?title=Physical_units/Dimensionalized_numbers&diff=23191&oldid=prev
Lemming: Numeric Prelude
2008-09-30T14:24:00Z
<p>Numeric Prelude</p>
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<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;"></td>
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<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>See also the more polished http://www.scannedinavian.org/cgi-bin/darcs.cgi/hlibs/physics/?c=browse. It uses a different trick to get negative numbers -- instead of using positional numbers with negative digits, it uses pairs of PeanoNumbers to represent the difference between them, and normalizes to at least one of them being zero.</div></td>
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<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>See also the more polished http://www.scannedinavian.org/cgi-bin/darcs.cgi/hlibs/physics/?c=browse. It uses a different trick to get negative numbers -- instead of using positional numbers with negative digits, it uses pairs of PeanoNumbers to represent the difference between them, and normalizes to at least one of them being zero.</div></td>
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<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;"></td>
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Lemming
https://wiki.haskell.org/index.php?title=Physical_units/Dimensionalized_numbers&diff=13907&oldid=prev
Marcel Manthe at 20:37, 30 June 2007
2007-06-30T20:37:59Z
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Marcel Manthe
https://wiki.haskell.org/index.php?title=Physical_units/Dimensionalized_numbers&diff=7999&oldid=prev
Lemming: Category:Mathematics
2006-11-06T11:54:36Z
<p>Category:Mathematics</p>
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<td class="diff-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>[[Category:<ins class="diffchange diffchange-inline">Mathematics</ins>]]</div></td>
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Lemming
https://wiki.haskell.org/index.php?title=Physical_units/Dimensionalized_numbers&diff=3216&oldid=prev
Ashley Y: +cat
2006-03-23T07:14:06Z
<p>+cat</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 07:14, 23 March 2006</td>
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<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;"></td>
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<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>See also the more polished http://www.scannedinavian.org/cgi-bin/darcs.cgi/hlibs/physics/?c=browse. It uses a different trick to get negative numbers -- instead of using positional numbers with negative digits, it uses pairs of PeanoNumbers to represent the difference between them, and normalizes to at least one of them being zero.</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>See also the more polished http://www.scannedinavian.org/cgi-bin/darcs.cgi/hlibs/physics/?c=browse. It uses a different trick to get negative numbers -- instead of using positional numbers with negative digits, it uses pairs of PeanoNumbers to represent the difference between them, and normalizes to at least one of them being zero.</div></td>
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<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;"></td>
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Ashley Y
https://wiki.haskell.org/index.php?title=Physical_units/Dimensionalized_numbers&diff=2733&oldid=prev
BrettGiles: Changed name of wanted page (Basic Alg. prop.) to unoffical guideline
2006-03-02T18:46:11Z
<p>Changed name of wanted page (Basic Alg. prop.) to unoffical guideline</p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 18:46, 2 March 2006</td>
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<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>or browseable at http://ofb.net/cgi-bin/darcs.cgi/dimensional/.</div></td>
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<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>or browseable at http://ofb.net/cgi-bin/darcs.cgi/dimensional/.</div></td>
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<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;"></td>
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<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;"></td>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>One annoying thing is that while the unitless type can be made an instance of Num, the others can't be made instances of things that support only (+) or (-). That should really be a seperate class, as in the [[Basic <del class="diffchange diffchange-inline">Algebra</del> <del class="diffchange diffchange-inline">Proposal</del>]].</div></td>
<td class="diff-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>One annoying thing is that while the unitless type can be made an instance of Num, the others can't be made instances of things that support only (+) or (-). That should really be a seperate class, as in the [[Basic <ins class="diffchange diffchange-inline">algebra</ins> <ins class="diffchange diffchange-inline">proposal</ins>]].</div></td>
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<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;"></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;"></td>
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<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>Comments appreciated, as are patches</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>Comments appreciated, as are patches</div></td>
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BrettGiles
https://wiki.haskell.org/index.php?title=Physical_units/Dimensionalized_numbers&diff=2596&oldid=prev
Ashley Y at 00:51, 27 February 2006
2006-02-27T00:51:55Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 00:51, 27 February 2006</td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>I have created a simple toy example using [[<del class="diffchange diffchange-inline">fundep</del>]]<del class="diffchange diffchange-inline">s</del> and [[phantom type]]s to do compile-time unit analysis error</div></td>
<td class="diff-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>I have created a simple toy example using [[<ins class="diffchange diffchange-inline">functional dependency|functional dependencies</ins>]] and [[phantom type]]s to do compile-time unit analysis error</div></td>
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<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>catching at the type level. It currently has only two "base dimensions" time, and length, and very few</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>catching at the type level. It currently has only two "base dimensions" time, and length, and very few</div></td>
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<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>convenience functions, but it is usable.</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>convenience functions, but it is usable.</div></td>
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<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>-- [[User:AaronDenney|Aaron Denney]]</div></td>
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<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>-- [[User:AaronDenney|Aaron Denney]]</div></td>
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<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;"></td>
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<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;"></td>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>See also the more polished http://www.scannedinavian.org/cgi-bin/darcs.cgi/hlibs/physics/?c=browse. It uses a different trick to get negative numbers -- instead of using positional numbers with negative digits, it uses pairs of <del class="diffchange diffchange-inline">[[Peano numbers]]</del> to represent the difference between them, and normalizes to at least one of them being zero.</div></td>
<td class="diff-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>See also the more polished http://www.scannedinavian.org/cgi-bin/darcs.cgi/hlibs/physics/?c=browse. It uses a different trick to get negative numbers -- instead of using positional numbers with negative digits, it uses pairs of <ins class="diffchange diffchange-inline">PeanoNumbers</ins> to represent the difference between them, and normalizes to at least one of them being zero.</div></td>
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Ashley Y