Talk:Triangulation

message: In mathematics, a triangulation is not a process, but perhaps the final result of the process.  I'm not sure I can quote a good definition at the moment, but the definition on this page is unduly narrow and needs work. Michael Hardy 01:24 Apr 8, 2003 (UTC)
:I don't want to argue, but I think that for most non-mathematician triangulation is a process, the end result beeing the lenght, height or area just determinated by ... triangulation. -- looxix 21:03 Apr 8, 2003 (UTC)
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The triangulation in topology and geometry are highly related, who can merge the two parts together? wshun 02:06, 19 Dec 2003 (UTC)
replies: text: I vote not. They are related in a way that the topological notion is a natural generalization of the geometrical one. So, IMO the better idea is to change their order in the article and mention the fact of generalization.... I am doing it right now... Will not be worse anyway :-) Mikkalai 03:08, 19 Dec 2003 (UTC)

text: It will still all work fine.  You'll just find that tan(α) is negative, because the perpendicular lands to the left of A rather than between A and B.  Jheald (talk) 16:38, 11 January 2012 (UTC)

text: Thanks,i convinced myself by deriving the relation when alpha>90 degree,i found it to give same expression for 'd'(i should have done this earlier,i admit),also i convinced myself for the fact that d>0 always,through geometrical proof.  — Preceding unsigned comment added by 203.197.30.2 (talk) 05:54, 12 January 2012 (UTC)
thread_title:  triangulation 

message: In surveying/geodesy, triangulation is also the process of covering an area with triangles and computing the co-ordinates of the nodal points. This could be made clearer.
:I couldn't agree more.--www.doc 12:39, 3 April 2006 (UTC)
thread_title:  geodetic triangulation 

message: Process or not, this page is obtuse to the point of being an obstruction to learning. How on earth this would qualify as an encyclopaedic entry is beyond me. It makes a hash of a simple concept and its application.  Malangthon 10:54 SPT. 05/09/06
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I really don't understand triangulation after reading this article. I think it needs some clarification, and I think that an example would really help in the explanation.
Yes this needs far more explanation. The Wiki page 'Solution of triangles' has the answer, or much of it. In essence if you know the length of one side of a triangle and two of the angles of the triangle you can work out all the missing data using geometry.  Thus proceeding from just one establishing triangle you can work your way across a whole terrain measuring from one trig point and triangle to the next.  — Preceding unsigned comment added by 92.13.79.121 (talk) 15:35, 4 March 2020 (UTC)
thread_title:  serious rewrite needed 

message: Hi. Would either of these be considered triangulation:
# Using "angular size" (how large an object looks from a point) and distance to determine size of object, or using "angular size" (how large an object looks from a point) and size of object to determine distance,
# Using parallax, from either two points or eyes to determine size of object or distance,
# Or using three points on a map, etc, to form a triangle, making smaller triangles within it by drawing points on the centres of the sides, and repeating the process to find the centre?
Thanks. AstroHurricane001(Talk+Contribs+Ubx) 01:02, 16 February 2007 (UTC)
thread_title:  is this triangulation? 

message: I removed it because triangulation is usually not taught in elementary. That's why I removed the word.N734LQ 23:58, 29 June 2007 (UTC)
thread_title: Removed elementary from first line

message: The text refers to the angle θ, but the image on the right does not show where this angle is. Can someone create a new image with that angle? enderminh 16:25, 3 July 2007 (UTC)
replies: text: The text explains it quite clearly: the third angle of the triangle. Two angles are marked α and β, and the triangle has only three angles. I hope that is enough to find out where the θ angle is.... --CiaPan 06:20, 4 July 2007 (UTC)
replies: text: I know that. I just think that given that the text refers to it often, it would be nice to have an image that actually has that angle. It's just a suggestion. enderminh 08:07, 7 July 2007 (UTC)
thread_title: Where is the θ in the image?

message: :Image:Triangulation mip.jpg is being used on this article. I notice the image page specifies that the image is being used under fair use but there is no explanation or rationale as to why its use in this Wikipedia article constitutes fair use. In addition to the boilerplate fair use template, you must also write out on the image description page a specific explanation or rationale for why using this image in each article is consistent with fair use.
Please go to the image description page and edit it to include a fair use rationale. Using one of the templates at Wikipedia:Fair use rationale guideline is an easy way to insure that your image is in compliance with Wikipedia policy, but remember that you must complete the template. Do not simply insert a blank template on an image page.
If there is  other fair use media, consider checking that you have specified the fair use rationale on the other images used on this page.  Note that any fair use images uploaded after 4 May, 2006, and lacking such an explanation will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. If you have any questions please ask them at the Media copyright questions page. Thank you.
BetacommandBot 00:28, 26 July 2007 (UTC)
thread_title: Fair use rationale for Image:Triangulation mip.jpg

message: Out of curiosity, could we put a section about triangulation in chess endgames ?
Seigneur101 (talk) 01:47, 26 March 2008 (UTC)
replies: text: Ah well, never mind... http://en.wikipedia.org/wiki/Triangulation_(chess) :) Seigneur101 (talk) 12:39, 26 March 2008 (UTC)
thread_title:  Triangulation in chess 

message: Pardon my ignorance of math, etc. but when trying to understand the topic I referred to the article on Angle and was confused as to what units of angle were being used in the calculations in this Triangulation article. I assume the calcs here use radians, but after reading that grad or gon is used "mainly in triangulation" I'm now unsure. I think this article needs to explain the units of angle used here as well as angle unit conventions and their context in triangulation, and/or add a link to the Angle article. Thanks Jd4x4 (talk) 07:01, 25 May 2009 (UTC)
replies: text: You could be using degrees, radians, grads.  It doesn't matter.  So long as you've told your calculator which units of angle you're using (or in olden days got out the appropriate book of trigonometry tables), the formulas are the same and you will get the same answer, whatever units you choose.  Jheald (talk) 10:33, 25 May 2009 (UTC)
replies: text: Doh! Thanks for not mentioning my ignorance. I was tired & have math-o-phobia?? (talk) 13:31, 25 May 2009 (UTC)
thread_title:  Ambiguous Units of Angle in Calculations? (or explaination needed.) 

message: Is accuracy of the triangulation is better than that of the Differential GPS. Can some one comment on this? --உமாபதி (talk) 13:14, 31 July 2013 (UTC)
thread_title: Accuracy of the triangulation