←2018-06-30 2018-07-01 2018-07-02→ ↑2018 ↑all
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02:03:07 <shachaf> mniip: So I don't think the differential form sense of "dx" is compatible with the Leibniz notation sense.
02:03:20 <shachaf> I've been trying to figure out how the latter works for a while and I'm still not sure, but I'm pretty sure it's different.
02:03:47 <mniip> shachaf, well are you familiar with integrals of second kind
02:03:57 <mniip> \int ( \vec F, \vec dr )
02:04:10 <mniip> aka \int Fx dx + Fy dy + Fz dz ...
02:04:31 <mniip> that's kind of the stuff
02:04:55 <shachaf> Maybe?
02:05:01 <shachaf> Probably not too much.
02:07:14 <shachaf> What's the context?
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02:25:00 <mniip> shachaf, smooth manifolds and analysis on them
02:25:50 <mniip> chapters 3 and 4 just covered tangent and cotangent bundles, and a differential of a function as a cotangent bundle section (covector field)
02:26:25 <mniip> hoping to understand integration on manifolds one day
02:27:57 <shachaf> me too hth
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02:41:47 <mniip> shachaf, it's kind of interesting how there's like a triple contravariance at play when we're considering cotangent spaces
02:42:33 <shachaf> ?
02:42:43 <mniip> you have your manifold M and then there's smooth functions M -> R, and then there's derivations (M -> R) -> R that are tangent vectors
02:43:00 <mniip> then cotangent vectors are the dual of that, i.e linear functionals of type ((M -> R) -> R) -> R
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02:44:35 <mniip> so 'dx' is the tangent covector (linear functional) that maps d/dx (a tangent vector) to 1, and all other basis vectors to 0
02:45:15 <mniip> and 'd/dx' is a vector that computes the derivative of a function across the local 'x' coordinate
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03:49:31 <oerjan> . o O ( their network access seems a bit random )
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03:54:30 <shachaf> d/dx is a tangent vector?
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04:47:57 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56203&oldid=55729 * A * (+672)
04:48:02 <esowiki> [[Talk:Number Factory]] https://esolangs.org/w/index.php?diff=56204&oldid=54353 * Challenger5 * (+260) /* Another Python Interpreter */ new section
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04:51:02 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56205&oldid=56203 * A * (+39) /* Stuck */
04:52:23 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56206&oldid=56205 * A * (+63) /* Stuck */
04:56:03 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56207&oldid=56206 * A * (+288) /* Aha! */
04:57:08 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56208&oldid=56207 * A * (+10) /* Step 1 (Overflow Control) */
04:57:20 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56209&oldid=56208 * A * (+9) /* Step 2 (Array I/O) */
04:57:36 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56210&oldid=56209 * A * (+0) /* Step 2 (Array I/O)(CMD = 6) */
04:57:52 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56211&oldid=56210 * A * (+9) /* Step 3 (Combine < and +) */
04:58:03 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56212&oldid=56211 * A * (+9) /* Step 4 (Jump command) */
04:58:20 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56213&oldid=56212 * A * (+9) /* Step 5 (Putting loop on array) */
05:03:16 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56214&oldid=56213 * A * (+299) /* Step 5 (Putting loop on array) (CMD = 2) */
05:03:49 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56215&oldid=56214 * A * (+0) /* Step 6 (Aha! Using current cell) (CMD = 1) */
05:04:43 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56216&oldid=56215 * A * (+71) /* Step 6 (Aha! Using current cell) (CMD = 1) */
05:05:18 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56217&oldid=56216 * A * (-38) /* Step 5 (Putting loop on array) (CMD = 2) */
05:05:39 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56218&oldid=56217 * A * (+38) /* Step 6 (Aha! Using current cell) (CMD = 1) */
05:05:55 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56219&oldid=56218 * A * (-67) /* Stuck */
05:10:08 <esowiki> [[BF instruction extension]] N https://esolangs.org/w/index.php?oldid=56220 * A * (+184) Created page with "Our goal is to extend the instructions of Brainf*ck as far as possible. Anything that you thought of could be one of the instructions. We'll atart with the standard commands:..."
05:10:47 <esowiki> [[Works in progress]] https://esolangs.org/w/index.php?diff=56221&oldid=55852 * A * (+31)
05:11:29 <esowiki> [[Works in progress]] https://esolangs.org/w/index.php?diff=56222&oldid=56221 * A * (+0)
05:11:45 <esowiki> [[BF instruction extension]] https://esolangs.org/w/index.php?diff=56223&oldid=56220 * A * (+0)
05:13:04 <esowiki> [[Brainfuck]] https://esolangs.org/w/index.php?diff=56224&oldid=56194 * A * (+31) /* See also */
05:15:54 <esowiki> [[User talk:A]] N https://esolangs.org/w/index.php?oldid=56225 * Asdf * (+60) Created page with "I allow you to use my inplementation in C++. --[[User:Asdf]]"
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05:23:56 <esowiki> [[User talk:A]] https://esolangs.org/w/index.php?diff=56226&oldid=56225 * A * (+122)
05:23:56 <oerjan> yeah, they're _so_ two different people.
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05:27:27 <esowiki> [[Esolang:Help]] https://esolangs.org/w/index.php?diff=56227&oldid=43623 * A * (+214) /* When to do stuff */
05:30:31 <esowiki> [[Esolang:Help]] https://esolangs.org/w/index.php?diff=56228&oldid=56227 * Oerjan * (-214) Undo revision 56227 by [[Special:Contributions/A|A]] ([[User talk:A|talk]]) (You know this wiki is small enough that all pages are highly visible, right?)
05:31:25 <oerjan> i seem to have failed at not being sarcastic, despite already closing one editing tab
05:34:56 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56229&oldid=56219 * Oerjan * (-31) Hierarch those sections
05:37:04 <esowiki> [[List of ideas]] https://esolangs.org/w/index.php?diff=56230&oldid=55571 * A * (+63) /* Ideas for Names */
05:40:40 <esowiki> [[Pizza]] N https://esolangs.org/w/index.php?oldid=56231 * A * (+776) Created page with "==Overview== '''Pizza''' is a joke programming language created by Nicholas Smith as a glitch to the BBC question about false programming language on 1 July 2018. It contains..."
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06:28:26 <esowiki> [[Brainfuck]] https://esolangs.org/w/index.php?diff=56232&oldid=56224 * A * (+40) /* See also */
06:29:40 <esowiki> [[Brainfuck Contest]] N https://esolangs.org/w/index.php?oldid=56233 * A * (+132) Created page with "Hi! This is a Brainfuck Contest page. If you want to have a contest here, then go for it! ==Contest 1== Link:[[Brainfuck Contest 1]]"
06:32:52 <esowiki> [[Brainfuck Contest 1]] N https://esolangs.org/w/index.php?oldid=56234 * A * (+314) Created page with "Welcome to my test contest! ==Rule== This is a golf contest. Anyone with the shortest code wins. ==Addition program== Indeed, we have to test it. If you have an answer, just g..."
06:33:38 <esowiki> [[Brainfuck Contest 1]] https://esolangs.org/w/index.php?diff=56235&oldid=56234 * A * (+13)
06:35:39 <esowiki> [[Brainfuck Contest]] https://esolangs.org/w/index.php?diff=56236&oldid=56233 * A * (+43) /* Contest 1 */
06:38:53 <esowiki> [[Brainfuck Contest 2]] N https://esolangs.org/w/index.php?oldid=56237 * A * (+420) Created page with "Welcome to my test contest! ==Rule== This is a golf contest. Anyone with the shortest code wins. ==Addition program== Indeed, we have to test it. If you have an answer, just g..."
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08:34:50 <esowiki> [[BackTurn]] N https://esolangs.org/w/index.php?oldid=56238 * Zzo38 * (+940) Created page with "[[Category:Languages]][[Category:Unimplemented]][[Category:2018]][[Category:Reversible computing]][[Category:Two-dimensional languages]][[Category:Self-modifying]] BackTurn is..."
08:35:31 <zzo38> Please look at the new [[BackTurn]] program language see if it is good or else what other comment/question/complaint.
08:39:56 <esowiki> [[Deadfish]] https://esolangs.org/w/index.php?diff=56239&oldid=56197 * Zzo38 * (+44) Add a comment to the MIX implementation about modifications for binary computers
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10:11:39 <esowiki> [[Array Changer]] N https://esolangs.org/w/index.php?oldid=56240 * A * (+17234) Created page with "Array Changer is a very simple language. == State Table == {| class="wikitable" ! State || Next State On 0 || Next State On 1 |- | <code>0x00</code> || <code>0x2B</code> || <c..."
10:13:15 <esowiki> [[Array Changer]] https://esolangs.org/w/index.php?diff=56241&oldid=56240 * A * (+0)
10:13:38 <esowiki> [[Array Changer]] https://esolangs.org/w/index.php?diff=56242&oldid=56241 * A * (+0)
10:13:47 <esowiki> [[Array Changer]] https://esolangs.org/w/index.php?diff=56243&oldid=56242 * A * (+0)
10:13:48 <esowiki> [[Array Changer]] https://esolangs.org/w/index.php?diff=56244&oldid=56243 * A * (+0)
10:19:48 <esowiki> [[Brainfuck---]] N https://esolangs.org/w/index.php?oldid=56245 * A * (+1704) Created page with "'''Brainfuck---''' is a language made by [[User:A|User:A]] and is a downgraded version of [[brainfuck--]], that uses only four instructions. == History == Brainfuck-- was c..."
10:21:24 <esowiki> [[Brainfuck---]] https://esolangs.org/w/index.php?diff=56246&oldid=56245 * A * (-27)
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10:38:56 <esowiki> [[Asd]] N https://esolangs.org/w/index.php?oldid=56247 * A * (+1144) Created page with "'''asd''' is an [[esoteric programming language]] created by [[User:A]] which makes [[123]]'s syntax simpler. == Instructions == The pointer begins at location 0. The progra..."
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11:06:33 <esowiki> [[Asd]] https://esolangs.org/w/index.php?diff=56248&oldid=56247 * A * (-26) /* Instructions */
11:07:38 <esowiki> [[Asd]] https://esolangs.org/w/index.php?diff=56249&oldid=56248 * A * (-26) /* Instructions */
11:08:00 <esowiki> [[Asd]] https://esolangs.org/w/index.php?diff=56250&oldid=56249 * A * (+12) /* Instructions */
11:11:44 <esowiki> [[Asd]] https://esolangs.org/w/index.php?diff=56251&oldid=56250 * A * (+32) /* Instructions */
11:13:10 <esowiki> [[Asd]] https://esolangs.org/w/index.php?diff=56252&oldid=56251 * A * (-39) /* Instructions */
11:16:18 <esowiki> [[Asd]] https://esolangs.org/w/index.php?diff=56253&oldid=56252 * A * (-13) /* Instructions */
11:17:20 <esowiki> [[Asd]] https://esolangs.org/w/index.php?diff=56254&oldid=56253 * A * (-5) /* Instructions */
11:28:39 <esowiki> [[Asd]] https://esolangs.org/w/index.php?diff=56255&oldid=56254 * A * (-32) /* Instructions */
11:29:12 <esowiki> [[Asd]] https://esolangs.org/w/index.php?diff=56256&oldid=56255 * A * (+34) /* Instructions */
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11:33:49 <esowiki> [[Asd]] https://esolangs.org/w/index.php?diff=56257&oldid=56256 * A * (-274) /* Instructions */
11:35:25 <esowiki> [[Asd]] https://esolangs.org/w/index.php?diff=56258&oldid=56257 * A * (-49) /* Examples */
11:35:37 <esowiki> [[Asd]] https://esolangs.org/w/index.php?diff=56259&oldid=56258 * A * (+0) /* Instructions */
11:38:53 <esowiki> [[Asd]] https://esolangs.org/w/index.php?diff=56260&oldid=56259 * A * (+47) /* Instructions */
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11:43:39 <esowiki> [[Asd]] https://esolangs.org/w/index.php?diff=56261&oldid=56260 * A * (-175)
11:48:23 <esowiki> [[Ja]] N https://esolangs.org/w/index.php?oldid=56262 * A * (+464) Created page with "'''ja''' is an [[esoteric programming language]] created by A. == Instructions == {| class="wikitable" ! Instruction || Description |- | <code>j</code> || jump to cell numbe..."
11:48:51 <esowiki> [[Turing tarpit]] https://esolangs.org/w/index.php?diff=56263&oldid=56044 * A * (+34) /* Survey */
11:50:19 <esowiki> [[Turing tarpit]] https://esolangs.org/w/index.php?diff=56264&oldid=56263 * A * (+52) /* Survey */
11:50:29 <esowiki> [[Turing tarpit]] https://esolangs.org/w/index.php?diff=56265&oldid=56264 * A * (+0) /* Survey */
12:01:45 <esowiki> [[Ja]] https://esolangs.org/w/index.php?diff=56266&oldid=56262 * A * (+3) /* Instructions */
12:02:31 <esowiki> [[Ja]] https://esolangs.org/w/index.php?diff=56267&oldid=56266 * A * (+34) /* Instructions */
12:09:18 <esowiki> [[Ja]] https://esolangs.org/w/index.php?diff=56268&oldid=56267 * A * (+88) /* Example (Infinite Loop) */
12:10:07 <esowiki> [[Ja]] https://esolangs.org/w/index.php?diff=56269&oldid=56268 * A * (+9)
12:12:40 <esowiki> [[Ja]] https://esolangs.org/w/index.php?diff=56270&oldid=56269 * A * (-2) /* Instructions */
12:13:55 <esowiki> [[Ja]] https://esolangs.org/w/index.php?diff=56271&oldid=56270 * A * (+26) /* Example (Infinite Loop) */
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12:37:00 <esowiki> [[Talk:Ja]] N https://esolangs.org/w/index.php?oldid=56272 * BoutonIA * (+578) Create the page and add Interpreter
12:41:06 <esowiki> [[Talk:Ja]] M https://esolangs.org/w/index.php?diff=56273&oldid=56272 * BoutonIA * (+93)
12:43:46 <esowiki> [[Talk:Ja]] M https://esolangs.org/w/index.php?diff=56274&oldid=56273 * BoutonIA * (-70)
12:45:32 <esowiki> [[BF instruction minimalization]] https://esolangs.org/w/index.php?diff=56275&oldid=56229 * A * (-8) /* Iamcalledbob's attempt */
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14:06:16 <esowiki> [[Talk:Ja]] https://esolangs.org/w/index.php?diff=56276&oldid=56274 * BoutonIA * (+11)
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14:59:44 <esowiki> [[FuckPack]] N https://esolangs.org/w/index.php?oldid=56277 * A * (+124) Created page with "FuckPack is Brainfuck, but with these other commands: ==Jump Commands== J Jump to the cell id numbered as the current bit."
15:00:10 <esowiki> [[Brainfuck extensions]] https://esolangs.org/w/index.php?diff=56278&oldid=54927 * A * (+14)
15:01:10 <esowiki> [[FuckPack]] https://esolangs.org/w/index.php?diff=56279&oldid=56277 * A * (+73) /* Jump Commands */
15:01:28 <esowiki> [[Brainfuck extensions]] https://esolangs.org/w/index.php?diff=56280&oldid=56278 * A * (+14)
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18:56:07 <esowiki> [[Brainfuck implementations]] https://esolangs.org/w/index.php?diff=56281&oldid=56147 * Rdebath * (-9) Repair broken list (and exaggeration)
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22:12:34 <esowiki> [[Brainfuck Contest 1]] M https://esolangs.org/w/index.php?diff=56282&oldid=56235 * Plokmijnuhby * (+26) /* Output */
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←2018-06-30 2018-07-01 2018-07-02→ ↑2018 ↑all