User talk:WalkingRadiance

From Wikimedia Commons, the free media repository
(Redirected from User talk:ScientistBuilder)
Jump to navigation Jump to search
Welcome to Wikimedia Commons, WalkingRadiance!

-- Wikimedia Commons Welcome (talk) 01:31, 11 July 2018 (UTC)[reply]

File:PSFS since T190.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry.

If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please see Commons:But it's my own work! for a guide on how to address these issues.

Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

Constant314 (talk) 01:40, 24 February 2022 (UTC)[reply]

Where is the source of the copyright? ScientistBuilder (talk) 01:52, 24 February 2022 (UTC)[reply]
File:En-Leonard-Euler.ogg has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry.

If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please see Commons:But it's my own work! for a guide on how to address these issues.

Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

—⁠andrybak (talk) 22:22, 28 March 2022 (UTC)[reply]

[edit]

Hi ScienceBuilder,

I see that you loaded a copy of the SI Logo from the BIPM website onto Commons and have used it in the Wikipedia article en:International System of Units. Although most of the images on the BIPM website can be loaded into Commons, the image that you loaded has a "no-derivative" (Creative Commons Attribution-NoDerivatives 4.0 International) clause attached to it which means that it violates Commons' standards (See here. The image can however be loaded onto the English Wikipedia under a "fair use" clause. See en:WP:Non-free_content_criteria. May I also respectfully suggest that if you do transfer it to the English Wikipedia, that you use a shorter name. Martinvl (talk) 17:21, 21 April 2022 (UTC).[reply]

The name should be long because if two files have the same name, the latter file overwrites the previous file its best to be as descriptive as possible to avoid any conflicts. For more details, see Wikipedia The Missing Manual published in 2008. ScientistBuilder (talk) 12:26, 22 April 2022 (UTC)[reply]
I didn't modify the work, I just downloaded it and uploaded the work. I didn't recolor the work or dilate the logo, so why can't I use it. The copyright page for the BIPM is CC 3.0 IGO https://www.bipm.org/en/copyright, not CC 4.0 IGO. ScientistBuilder (talk) 12:28, 22 April 2022 (UTC)[reply]
@ScientistBuilder:
  • If you go to BIPM Copyright information you will see the text in condition 03: "Unless stated aotherwise ..." and on the page Promotion of the SI you will see that the SI logos may only be copied using "Creative Commons Attribution-NoDerivatives 4.0 International". This latter condition overrides the general condition.
  • I went to en:WP:File names. The opening sentence states: "Wikipedia file names should be clear and descriptive, without being excessively long." The name that you have chosen is much longer than most other file names. In the case of this image, I suggest "SI logo (2019) - units and constants.png" which meets the conditions of being clear and descriptive.
Martinvl (talk) 14:47, 23 April 2022 (UTC)[reply]
Here is some information from Wikipedia the Missing Manual:
Short or cryptic names for images make them a lot harder to find and use. If you use a short name, or the default filename from your camera (like DSC123456.jpg), it’s much more likely that someone else will later upload an image with exactly the same name, and that will overwrite what you uploaded. Or, if you’re uploading to the Commons with the intent to add an image to the English Wikipedia, you’ll discover that an image file with the name you picked already exists on Wikipedia, so you can’t use the one at the Commons.
The best image name is a fairly long description. A bonus of using such a name is that you can copy and paste it into the Description field for the image, saving yourself some typing. (The maximum file name length is around 250 characters, but you won’t need a name that long.)
Finally, the image name you use has to have a three-letter extension, such as .jpg or .svg. The extension must match the actual file type, or the photo won’t display correctly. That makes image pages different from regular pages (articles, talk pages, portals, categories, and so on), which don’t have a suffix. If you forget the extension, you’re going to have to upload the photo again. Lowercase extensions, such as .jpg, are preferred over uppercase, like .JPG, though both work. Note that the Commons (and other MediaWiki websites) considers them two totally different files. ScientistBuilder (talk) 18:19, 23 April 2022 (UTC)[reply]
@Martinvl I can change the copyright to CC 4.0 IGO. Will this fix the copyright and legal issues leaving the file name issue to be resolved? ScientistBuilder (talk) 18:20, 23 April 2022 (UTC)[reply]
@ScientistBuilder:
  • When you write "The Missing Manual". please insert a wikilink by writing "[[:en:WP:The Missing Manual]]".
  • I will leave you to call your file whatever you think is best, I was just giving you the benefit of many years experience in IT - I wrote my first program in 1969.
  • The licence that is applicable to this file is "CC-BY-NC-SA-4.0", not "CC 4.0 IGO". If you refer to Commons:Licensing#Forbidden licenses, you will see that "-ND" licences are forbidden in Commons. Since the file in question uses It is therefore not OK to load this file into Commons.
  • You can load this file into the English Wikipedia under a "Fair Use" criteria.
  • If you do load this file onto the English Wikipedia, its source is "https://www.bipm.org/en/measurement-units/si-promotion".
Martinvl (talk) 22:19, 23 April 2022 (UTC)[reply]
@Martinvl "CC-BY-NC-SA-4.0" does not include No Derivatives. ScientistBuilder (talk) 16:43, 27 April 2022 (UTC)[reply]
@Martinvl Can I take a screenshot of the logo and upload the file?
Is there any way I can keep the high quality and follow the law?
I'm confused what no derivatives mean. ScientistBuilder (talk) 16:45, 27 April 2022 (UTC)[reply]
@Martinvl I would like to keep the high quality and upload the file by modifying it, maybe with a different colored background. ScientistBuilder (talk) 16:46, 27 April 2022 (UTC)[reply]

Hi @ScientistBuilder: I have found a work-around for the licensing requirements. Your image came from this site which has a licence that is incompatible with Wikimedia Commons. I found this site which has a Commons-compatible licence. Under the licence, I was able to cut and paste the logo from the SI Brochure and transfer it to Commons, keeping to the terms of both Commons and BIPM. The only price that we have had to pay is a sligh degragation in quality, but it the logo is reduced to 300 px, the degregation is not noticable. I have uploaded a new image here.

@ScientistBuilder:
Logo of the revised SI (Courtesy of BIPM)
  • I made an error - the copyright notice should have been "CC-BY-ND-SA-4.0" (or possibly "CC-BY-ND-SA-3.0". "No derivatives" means that you cannot modify the file - if you visit this file, click "SI Illustration Guidelines" and look at page 2 of the resultant file, you will see a few derivatives that are not permitted. Likewise you are not permitted to use parts of the illustration. Wikimedia COmmons demands that all files are "free" which includes the freedom to modify files.
  • No, you can't take a screenshot as that would not change the copyright situation.
  • You can only do what the copyright holder permits you to do. Often the copyright holder will require that you pay a fee to use their pictures (that is how professional photographers make a living), but in this case, BIPM are not demanding a fee, just that you use the file "as is" to append to any of your documents - for example the complete text of SI which is on the 9th edition of the brochure. The SI Brochure is copyright as "CC-BY-AT-3.0" which means that you can extract what you like from it including the logo (BIPM own the copyright if both). I have already done that - see my contribution on the right. If you look at the file itself, you will see that I have explicitly stated why I believe that I can use it. If a user wants a high quality image, they can go to the BIPM site - in thsi case the Commons site is principally for Wikipedia editors.
For the record, it is unlikely that BIPM will complain unless somebody uses a derivative of the file. Martinvl (talk) 17:13, 27 April 2022 (UTC)[reply]
@Martinvl I understand the ND means no making money off the BIPM logo. Is that correct? I agree with the BIPM saying no making money by selling products with the BIPM logo. ScientistBuilder (talk) 18:03, 27 April 2022 (UTC)[reply]
@ScientistBuilder: NO - "ND" means that you will not modify relevant file in any way apart from including it in some other file ("No derivatives"). This includes photographing it or taking a screen shot of it. Commons does not permit files with an "ND" attribute to be loaded. The attibute "NC" means that you will not make any money out of it. Martinvl (talk) 20:49, 27 April 2022 (UTC)[reply]
I found the text at https://creativecommons.org/licenses/
Attribution-NonCommercial-NoDerivs
CC BY-NC-ND
This license is the most restrictive of our six main licenses, only allowing others to download your works and share them with others as long as they credit you, but they can’t change them in any way or use them commercially. ScientistBuilder (talk) 21:57, 27 April 2022 (UTC)[reply]

Copyright status: File:Defining constants in the 2019 International System of Units with the hyperfine transition frequency of Cs, speed of light in vacuum, Planck constant, elementary charge, Boltzmann constant, Avogadro constant, luminous efficacy.png

bahasa melayu  català  čeština  dansk  deutsch (Sie-Form)  deutsch  english  español  français  galego  hrvatski  italiano  magyar  nederlands  norsk  norsk bokmål  norsk nynorsk  português  polski  português do Brasil  română  sicilianu  slovenčina  slovenščina  suomi  svenska  türkçe  беларуская  беларуская (тарашкевіца)  български  македонски  русский  українська  ಕನ್ನಡ  ತುಳು  മലയാളം  한국어  日本語  中文(简体)  中文(繁體)  עברית  العربيَّة  فارسی  +/−
Warning sign
This media may be deleted.
Thanks for uploading File:Defining constants in the 2019 International System of Units with the hyperfine transition frequency of Cs, speed of light in vacuum, Planck constant, elementary charge, Boltzmann constant, Avogadro constant, luminous efficacy.png. I notice that the file page either doesn't contain enough information about the license or it contains contradictory information about the license, so the copyright status is unclear.

If you created this file yourself, then you must provide a valid copyright tag. For example, you can tag it with {{self|GFDL|cc-by-sa-all}} to release it under the multi-license GFDL plus Creative Commons Attribution-ShareAlike All-version license or you can tag it with {{PD-self}} to release it into the public domain. (See Commons:Copyright tags for the full list of license tags that you can use.)

If you did not create the file yourself or if it is a derivative of another work that is possibly subject to copyright protection, then you must specify where you found it (e.g. usually a link to the web page where you got it), you must provide proof that it has a license that is acceptable for Commons (e.g. usually a link to the terms of use for content from that page), and you must add an appropriate license tag. If you did not create the file yourself and the specific source and license information is not available on the web, you must obtain permission through the VRT system and follow the procedure described there.

Note that any unsourced or improperly licensed files will be deleted one week after they have been marked as lacking proper information, as described in criteria for deletion. If you have uploaded other files, please confirm that you have provided the proper information for those files, too. If you have any questions about licenses please ask at Commons:Village pump/Copyright or see our help pages. Thank you.

This action was performed automatically by AntiCompositeBot (talk) (FAQ) 08:06, 2 May 2022 (UTC)[reply]

Pay attention to copyright
File:Mathematica Start Screen.jpg has been marked as a possible copyright violation. Wikimedia Commons only accepts free content—that is, images and other media files that can be used by anyone, for any purpose. Traditional copyright law does not grant these freedoms, and unless noted otherwise, everything you find on the web is copyrighted and not permitted here. For details on what is acceptable, please read Commons:Licensing. You may also find Commons:Copyright rules useful, or you can ask questions about Commons policies at the Commons:Help desk. If you are the copyright holder and the creator of the file, please read Commons:But it's my own work! for tips on how to provide evidence of that.

The file you added has been deleted. If you have written permission from the copyright holder, please have them send us a free license release via COM:VRT. If you believe that the deletion was not in accordance with policy, you may request undeletion. (It is not necessary to request undeletion if using VRT; the file will be automatically restored at the conclusion of the process.)

Warning: Wikimedia Commons takes copyright violations very seriously and persistent violators will be blocked from editing.

Afrikaans  asturianu  azərbaycanca  Bahasa Indonesia  Bahasa Melayu  català  čeština  dansk  Deutsch  Deutsch (Sie-Form)‎  English  español  euskara  français  galego  hrvatski  italiano  Lëtzebuergesch  magyar  Malti  Nederlands  norsk bokmål  norsk nynorsk  oʻzbekcha / ўзбекча  Plattdüütsch  polski  português  português do Brasil  română  sicilianu  slovenčina  slovenščina  suomi  svenska  Türkçe  Tiếng Việt  Zazaki  Ελληνικά  беларуская беларуская (тарашкевіца)‎  български  македонски  русский  српски / srpski  тоҷикӣ  українська  հայերեն  मराठी  বাংলা  മലയാളം  ပအိုဝ်ႏဘာႏသာႏ  မြန်မာဘာသာ  ไทย  한국어  日本語  中文(简体)‎  中文(繁體)‎  עברית  العربية  فارسی  +/−

--EugeneZelenko (talk) 14:39, 2 May 2022 (UTC)[reply]

File:Defining constants in the 2019 International System of Units with the hyperfine transition frequency of Cs, speed of light in vacuum, Planck constant, elementary charge, Boltzmann constant, Avogadro constant, luminous efficacy.jpg has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry.

If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please see Commons:But it's my own work! for a guide on how to address these issues.

Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

EugeneZelenko (talk) 14:40, 2 May 2022 (UTC)[reply]

Pay attention to copyright
File:Wolfram Mathematica Documentation Home Page.jpg has been marked as a possible copyright violation. Wikimedia Commons only accepts free content—that is, images and other media files that can be used by anyone, for any purpose. Traditional copyright law does not grant these freedoms, and unless noted otherwise, everything you find on the web is copyrighted and not permitted here. For details on what is acceptable, please read Commons:Licensing. You may also find Commons:Copyright rules useful, or you can ask questions about Commons policies at the Commons:Help desk. If you are the copyright holder and the creator of the file, please read Commons:But it's my own work! for tips on how to provide evidence of that.

The file you added has been deleted. If you have written permission from the copyright holder, please have them send us a free license release via COM:VRT. If you believe that the deletion was not in accordance with policy, you may request undeletion. (It is not necessary to request undeletion if using VRT; the file will be automatically restored at the conclusion of the process.)


  • This file is a copyright violation for the following reason: Non-licensed screenshot of non-free software
Warning: Wikimedia Commons takes copyright violations very seriously and persistent violators will be blocked from editing.

Afrikaans  asturianu  azərbaycanca  Bahasa Indonesia  Bahasa Melayu  català  čeština  dansk  Deutsch  Deutsch (Sie-Form)‎  English  español  euskara  français  galego  hrvatski  italiano  Lëtzebuergesch  magyar  Malti  Nederlands  norsk bokmål  norsk nynorsk  oʻzbekcha / ўзбекча  Plattdüütsch  polski  português  português do Brasil  română  sicilianu  slovenčina  slovenščina  suomi  svenska  Türkçe  Tiếng Việt  Zazaki  Ελληνικά  беларуская беларуская (тарашкевіца)‎  български  македонски  русский  српски / srpski  тоҷикӣ  українська  հայերեն  मराठी  বাংলা  മലയാളം  ပအိုဝ်ႏဘာႏသာႏ  မြန်မာဘာသာ  ไทย  한국어  日本語  中文(简体)‎  中文(繁體)‎  עברית  العربية  فارسی  +/−

User who nominated the file for deletion (Nominator) : PianoDan.

I'm a computer program; please don't ask me questions but ask the user who nominated your file(s) for deletion or at our Help Desk. //Deletion Notification Bot (talk) 22:16, 17 May 2022 (UTC)[reply]

Copyright status: File:HBCU trends gender.png

bahasa melayu  català  čeština  dansk  deutsch (Sie-Form)  deutsch  english  español  français  galego  hrvatski  italiano  magyar  nederlands  norsk  norsk bokmål  norsk nynorsk  português  polski  português do Brasil  română  sicilianu  slovenčina  slovenščina  suomi  svenska  türkçe  беларуская  беларуская (тарашкевіца)  български  македонски  русский  українська  ಕನ್ನಡ  ತುಳು  മലയാളം  한국어  日本語  中文(简体)  中文(繁體)  עברית  العربيَّة  فارسی  +/−
Warning sign
This media may be deleted.
Thanks for uploading File:HBCU trends gender.png. I notice that the file page either doesn't contain enough information about the license or it contains contradictory information about the license, so the copyright status is unclear.

If you created this file yourself, then you must provide a valid copyright tag. For example, you can tag it with {{self|GFDL|cc-by-sa-all}} to release it under the multi-license GFDL plus Creative Commons Attribution-ShareAlike All-version license or you can tag it with {{PD-self}} to release it into the public domain. (See Commons:Copyright tags for the full list of license tags that you can use.)

If you did not create the file yourself or if it is a derivative of another work that is possibly subject to copyright protection, then you must specify where you found it (e.g. usually a link to the web page where you got it), you must provide proof that it has a license that is acceptable for Commons (e.g. usually a link to the terms of use for content from that page), and you must add an appropriate license tag. If you did not create the file yourself and the specific source and license information is not available on the web, you must obtain permission through the VRT system and follow the procedure described there.

Note that any unsourced or improperly licensed files will be deleted one week after they have been marked as lacking proper information, as described in criteria for deletion. If you have uploaded other files, please confirm that you have provided the proper information for those files, too. If you have any questions about licenses please ask at Commons:Village pump/Copyright or see our help pages. Thank you.

And also:

Yours sincerely, Yann (talk) 19:45, 7 August 2022 (UTC)[reply]

Copyright status: File:Tri-state airport terminal map 2021.svg

bahasa melayu  català  čeština  dansk  deutsch (Sie-Form)  deutsch  english  español  français  galego  hrvatski  italiano  magyar  nederlands  norsk  norsk bokmål  norsk nynorsk  português  polski  português do Brasil  română  sicilianu  slovenčina  slovenščina  suomi  svenska  türkçe  беларуская  беларуская (тарашкевіца)  български  македонски  русский  українська  ಕನ್ನಡ  ತುಳು  മലയാളം  한국어  日本語  中文(简体)  中文(繁體)  עברית  العربيَّة  فارسی  +/−
Warning sign
This media may be deleted.
Thanks for uploading File:Tri-state airport terminal map 2021.svg. I notice that the file page either doesn't contain enough information about the license or it contains contradictory information about the license, so the copyright status is unclear.

If you created this file yourself, then you must provide a valid copyright tag. For example, you can tag it with {{self|GFDL|cc-by-sa-all}} to release it under the multi-license GFDL plus Creative Commons Attribution-ShareAlike All-version license or you can tag it with {{PD-self}} to release it into the public domain. (See Commons:Copyright tags for the full list of license tags that you can use.)

If you did not create the file yourself or if it is a derivative of another work that is possibly subject to copyright protection, then you must specify where you found it (e.g. usually a link to the web page where you got it), you must provide proof that it has a license that is acceptable for Commons (e.g. usually a link to the terms of use for content from that page), and you must add an appropriate license tag. If you did not create the file yourself and the specific source and license information is not available on the web, you must obtain permission through the VRT system and follow the procedure described there.

Note that any unsourced or improperly licensed files will be deleted one week after they have been marked as lacking proper information, as described in criteria for deletion. If you have uploaded other files, please confirm that you have provided the proper information for those files, too. If you have any questions about licenses please ask at Commons:Village pump/Copyright or see our help pages. Thank you.

Yours sincerely, Yann (talk) 21:07, 7 August 2022 (UTC)[reply]

SVG (Scalable Vector Graphics)[edit]

In other languages (translate this)

Deutsch  English  español  français  hrvatski  italiano  português  português do Brasil  sicilianu  беларуская (тарашкевіца)‎  македонски  русский  日本語  +/−

Please use SVG
Please use SVG
Thank you for uploading some images! Did you know that Wikimedia Commons recommends the SVG (Scalable Vector Graphics) format for certain types of images? Scalable Vector Graphics are designed to look appropriate at any scale, and SVG images are easier to modify and translate, helping Wikimedia to distribute knowledge to all of the world. A lot of modern programs support SVG export. If you encountered problems or have questions, don't hesitate to ask me, a member of the Graphic Lab, or the Graphics village pump. Uploading images in SVG format isn't mandatory, but it would help. (To avoid any misunderstandings, please don't just put raster images into an SVG container as embedded raster.) Thanks, and happy editing!

--EugeneZelenko (talk) 15:45, 9 August 2022 (UTC)[reply]

Seashell graphics for flat, Gouraud, and Phong shading[edit]

Hi there! I have some questions about these three images that you uploaded in August:

Firstly, are these images the ones you meant to upload? Because the Gouraud and Phong images don't look right to me; they both appear to show flat shading, the same as the first image. In fact, the Gouraud and Phong images are pixel-for-pixel identical to each other, and it took running an image comparison with ImageMagick for me to determine that the flat image is not identical as well! (It differs from them in the colours of some—not all—of the pixels on about a dozen of the faces.)

Secondly, these files comprise a PNG image stored within an SVG wrapper, which is quite an inefficient way to display an image. Is there a reason why these weren't simply uploaded as PNG files? -- Perey (talk) 11:37, 22 October 2022 (UTC)[reply]

I will change the images to Gouraud shading and Phong shading. The code I use is in Mathematica 13.1 would be something like Graphics3D[{GouraudShading[], ResourceData["Galleon"]}].
I uploaded as SVG because vectors can be scaled indefinitely. WalkingRadiance (talk) 14:56, 22 October 2022 (UTC)[reply]
Great, I look forward to seeing how the new versions turn out!
As for scaling, yes, vector graphics can be scaled indefinitely, but the issue is that the image in each of these isn't created using vectors. Instead, it's a PNG (raster) image, wrapped in an SVG file that does a bit of scaling and clipping, but doesn't actually draw anything. If a viewer zooms in on the image, they will soon see individual pixels, instead of vectors crisply rendered at the new size!
(Maybe I'm a cynic, but I imagine that this is the result of somebody at Wolfram figuring they can "tick a box" on the Mathematica feature list and claim to have SVG export, without actually bothering to use vectors to do the rendering...) -- Perey (talk) 11:02, 23 October 2022 (UTC)[reply]
Well I can upload a png as well. Would that be useful? Byn the way is there is a noticeable difference between the new uploads? WalkingRadiance (talk) 22:54, 23 October 2022 (UTC)[reply]

File ABS[z][edit]

Hallo,

I saw your image of ABS[z]

A plot of the absolute value function abs(z) in the complex plane from -2-2i to 2+2i with colors created with the Mathematica function ComplexPlot3D

but it isn't the right graph:

the ABS[z] (https://en.wikipedia.org/wiki/Absolute_value) graph is a linear graph in real and imaginary directions with a derivative discontinuity in the origin;

it's a cone with null imaginary part (always red color) Ming mm (talk) 11:18, 2 January 2023 (UTC)[reply]

I will fix this. I was testing a way to add Mathematica code.
Is there a template that I can use to add the Mathematica code used to generate the plot? WalkingRadiance (talk) 15:11, 2 January 2023 (UTC)[reply]
Ok, thanks for your answer.
I can't help you on template for code, sorry.
Keep in mind that is not always convenient to use the module/fhase color graph,
for exemple in ln(z) graph is more convenient real/immaginary graph because immaginary part is a a simply screw graph.
Best regards Ming mm (talk) 11:35, 9 January 2023 (UTC)[reply]
what do mean
Keep in mind that is not always convenient to use the module/fhase color graph,
for exemple in ln(z) graph is more convenient real/immaginary graph because immaginary part is a a simply screw graph.
? WalkingRadiance (talk) 13:48, 9 January 2023 (UTC)[reply]
I don't understand what you mean by module/fhase color graph. WalkingRadiance (talk) 13:49, 9 January 2023 (UTC)[reply]
Ok, now it is the right plot.
About your question on module/phase color graph: it is the image you are now using for representation of complex function, in wich module of the function is the hight of the graph, and phase of every point is represented by color of right index. Ming mm (talk) 13:57, 19 January 2023 (UTC)[reply]

A barnstar for you![edit]

The Original Barnstar
Merci Fred1806 (talk) 09:19, 5 January 2023 (UTC)[reply]

Why 4th power of z?[edit]

Hallo

in the file

File:Complex color plot of the Laguerre polynomial L n(x) with n as -1 divided by 9 and x as z to the power of 4 from -2-2i to 2+2i.svg

you multiply the Laguerre polynomial (n= -1) by z to the power of 4 but it create only confusion because L -1 (x) =exp(-x)

Try using another n and leave the polynomial as it is.

Best regards Ming mm (talk) 14:06, 19 January 2023 (UTC)[reply]

Can you format your message with math formatting because I don't fully understand waht you are saying? WalkingRadiance (talk) 21:08, 20 January 2023 (UTC)[reply]
Hallo
Leguerre polinomial for n =-1 is L -1 (x) = e-x
but you plot the complex function e-z^4 /9
I understand division by 9 for scaling,
but I don't understand your choice that isn't coherent with the article function.
Can you explain the reason of that? Ming mm (talk) 12:08, 21 January 2023 (UTC)[reply]
I thought it would be more interesting. Would you like me to change the description for the file? I can also create a normal plot without raising z to a power. WalkingRadiance (talk) 16:51, 21 January 2023 (UTC)[reply]
Hallo @WalkingRadiance,
I hope you understand what I mean because my english is not perfect and for me is difficult writing becuase normally I think in italian then translate, but it require a lot of time and sometimes means are differents.
We write on an open encyclopedy for give better information to readers, but sometimes information are misunderstanded or wrong and this create confusion to the readers.
In my italian homepage I have a section [1] with a list of error I correct so readers don't ask itself "WHY my information is different from this ?"
So, I think this: Laguerre polynomials are defined on Real variable and usually application are in Real field but a complex graph may be done but without changing (scale exluded) the function we are looking.
You can plot L2 (x) =
Best regards Ming mm (talk) 17:54, 21 January 2023 (UTC)[reply]

Council for best complex image[edit]

Hallo @WalkingRadiance

You made good works but can I allow you a council for best representing complex image?

Coplex image are often based on radial function (like exponential or powre of z) so image are better if are represented in a radial reference and not in squere one like default programs do.


Here an example of what I mean:

Riemann_sqrt.jpg

I don't know if you and the program you use are able to do that...

I think also abs(z) are better explained if this representation is used. Good night

Ming mm (talk) 18:06, 21 January 2023 (UTC)[reply]

I am using Mathematica 13.2. WalkingRadiance (talk) 02:45, 22 January 2023 (UTC)[reply]

Imaginary part of ber function is not zero[edit]

Hallo @WalkingRadiance, The imaginary part of ber function ber(z)

isn't always zero as we see in this image, but is a fourth power of z as described in wolfram.com [2]https://reference.wolfram.com/language/ref/KelvinBer.html Can you change this image with the correct one?
Ming mm (talk) 11:43, 27 February 2023 (UTC)[reply]

I uploaded a new version. WalkingRadiance (talk) 15:53, 27 February 2023 (UTC)[reply]
File:Chromaticity Diagram RGB.svg has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry.

If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please see Commons:But it's my own work! for a guide on how to address these issues.

Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

85.48.66.168 06:26, 30 March 2024 (UTC)[reply]