Trigonometric functions is a former featured article. Please see the links under Article milestones below for its original nomination page (for older articles, check the nomination archive) and why it was removed. | ||||||||||||||||
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i wanted to learn something - completely impossible from this article, this is just a reference for those who know all of this material already. — Preceding unsigned comment added by 108.84.184.142 ( talk) 21:44, 10 March 2013 (UTC)
I would like to point out that an encyclopedia article is not supposed to be the first place to learn about something. First consult a textbook, then for things that a textbook might leave out, or might get wrong, or might be slanted about, then go consult the encyclopedia. Or, first consult the encyclopedia in order to get a very vague and general idea of what is involved in the topic, what it is about, and a list of textbooks or sources in its bibliography. So these comments are invalid. 98.109.232.157 ( talk) 05:06, 1 September 2014 (UTC)
Boy I hope that is not the purpose of Wikipedia. That would make it pretty useless. 4 July 2017 (JCBoone) — Preceding unsigned comment added by Joseph C Boone ( talk • contribs) 21:50, 4 July 2017 (UTC)
@ DVdm: reverted my change from
to
with the comment "Sqrt(2)/2 is much more common than 1/sqrt(2) in the literature". Though I understand that √2/2 is more common, the line gives it twice. I wonder if it may help learners to know that both expressions are valid, should they come across the rarer form. Does anyone have any thoughts on this?
Cheers,
cmɢʟee⎆
τaʟκ 22:55, 5 July 2020 (UTC)
I'm surprised that there's no mention at all of how the tangent function has a vertical asymptote at θ = (k + 1/2)π, as it's what clearly delineates tan from sin and cos. Tangent (function) redirects here so I think it deserves mentioning, but I'm not sure on the best place for it as this article is quite dense already. Snizzbut ( talk) 16:16, 28 February 2021 (UTC)
In the "Simple algebraic values," is there some reason not to show zeroes for the sine and tangent of 0°, and for the cosine and cotangent of 90°? Right now, those spaces are blank. That seems odd, considering that other spaces on the table show infinity; that's an arguable point--the zeroes are not. Uporządnicki ( talk) 13:52, 19 August 2021 (UTC)
Update. Known bug, introduced today: Phab:T288846#7294135, [4] - DVdm ( talk) 21:28, 19 August 2021 (UTC)
Contains a number of errors. I'm not in a good position (ie. edit SVGs) to correct them. The value for sixty degrees is given as
which is not the case. It's correct in the table next to the diagram. Mwasheim ( talk) 14:55, 9 April 2023 (UTC)
@ D.Lazard et al., I have heard many people talk about "SOHCAHTOA". Although I don't have a citation at hand, I think it is improvement to the article to discuss SOHCAHTOA. Hopefully, someone will come up with a citation pronto and this will all be moot but, even if not, might we keep this discussion anyway? — Quantling ( talk | contribs) 13:14, 29 September 2023 (UTC)
I was on this page and I became curious: why do tangent, cotangent, secant and cosecant all share a page while sine and cosine get their own? Why can't we move them all into one page? Snipe ( talk) 01:16, 23 November 2023 (UTC)
In the article, there are references in the notes section and another section of references in the references section. This error (if it is an error) makes it impossible to annotate the article. Please someone fix this bug Bera678 ( talk) 14:01, 17 December 2023 (UTC)
The redirect Logarithmic sine has been listed at redirects for discussion to determine whether its use and function meets the redirect guidelines. Readers of this page are welcome to comment on this redirect at Wikipedia:Redirects for discussion/Log/2024 January 29 § Logarithmic sine until a consensus is reached. 1234qwer 1234qwer 4 23:22, 29 January 2024 (UTC)
tg and ctg, arctg and arcctg should not be used in accordance with ISO IEC 80000-2:2009. That is absent at the article. Voproshatel ( talk) 19:01, 4 February 2024 (UTC)
Trigonometric functions is a former featured article. Please see the links under Article milestones below for its original nomination page (for older articles, check the nomination archive) and why it was removed. | ||||||||||||||||
This article appeared on Wikipedia's Main Page as Today's featured article on March 6, 2004. | ||||||||||||||||
| ||||||||||||||||
Current status: Former featured article |
This
level-4 vital article is rated B-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||||||
|
Daily pageviews of this article
A graph should have been displayed here but
graphs are temporarily disabled. Until they are enabled again, visit the interactive graph at
pageviews.wmcloud.org |
This page has archives. Sections older than 365 days may be automatically archived by Lowercase sigmabot III when more than 10 sections are present. |
i wanted to learn something - completely impossible from this article, this is just a reference for those who know all of this material already. — Preceding unsigned comment added by 108.84.184.142 ( talk) 21:44, 10 March 2013 (UTC)
I would like to point out that an encyclopedia article is not supposed to be the first place to learn about something. First consult a textbook, then for things that a textbook might leave out, or might get wrong, or might be slanted about, then go consult the encyclopedia. Or, first consult the encyclopedia in order to get a very vague and general idea of what is involved in the topic, what it is about, and a list of textbooks or sources in its bibliography. So these comments are invalid. 98.109.232.157 ( talk) 05:06, 1 September 2014 (UTC)
Boy I hope that is not the purpose of Wikipedia. That would make it pretty useless. 4 July 2017 (JCBoone) — Preceding unsigned comment added by Joseph C Boone ( talk • contribs) 21:50, 4 July 2017 (UTC)
@ DVdm: reverted my change from
to
with the comment "Sqrt(2)/2 is much more common than 1/sqrt(2) in the literature". Though I understand that √2/2 is more common, the line gives it twice. I wonder if it may help learners to know that both expressions are valid, should they come across the rarer form. Does anyone have any thoughts on this?
Cheers,
cmɢʟee⎆
τaʟκ 22:55, 5 July 2020 (UTC)
I'm surprised that there's no mention at all of how the tangent function has a vertical asymptote at θ = (k + 1/2)π, as it's what clearly delineates tan from sin and cos. Tangent (function) redirects here so I think it deserves mentioning, but I'm not sure on the best place for it as this article is quite dense already. Snizzbut ( talk) 16:16, 28 February 2021 (UTC)
In the "Simple algebraic values," is there some reason not to show zeroes for the sine and tangent of 0°, and for the cosine and cotangent of 90°? Right now, those spaces are blank. That seems odd, considering that other spaces on the table show infinity; that's an arguable point--the zeroes are not. Uporządnicki ( talk) 13:52, 19 August 2021 (UTC)
Update. Known bug, introduced today: Phab:T288846#7294135, [4] - DVdm ( talk) 21:28, 19 August 2021 (UTC)
Contains a number of errors. I'm not in a good position (ie. edit SVGs) to correct them. The value for sixty degrees is given as
which is not the case. It's correct in the table next to the diagram. Mwasheim ( talk) 14:55, 9 April 2023 (UTC)
@ D.Lazard et al., I have heard many people talk about "SOHCAHTOA". Although I don't have a citation at hand, I think it is improvement to the article to discuss SOHCAHTOA. Hopefully, someone will come up with a citation pronto and this will all be moot but, even if not, might we keep this discussion anyway? — Quantling ( talk | contribs) 13:14, 29 September 2023 (UTC)
I was on this page and I became curious: why do tangent, cotangent, secant and cosecant all share a page while sine and cosine get their own? Why can't we move them all into one page? Snipe ( talk) 01:16, 23 November 2023 (UTC)
In the article, there are references in the notes section and another section of references in the references section. This error (if it is an error) makes it impossible to annotate the article. Please someone fix this bug Bera678 ( talk) 14:01, 17 December 2023 (UTC)
The redirect Logarithmic sine has been listed at redirects for discussion to determine whether its use and function meets the redirect guidelines. Readers of this page are welcome to comment on this redirect at Wikipedia:Redirects for discussion/Log/2024 January 29 § Logarithmic sine until a consensus is reached. 1234qwer 1234qwer 4 23:22, 29 January 2024 (UTC)
tg and ctg, arctg and arcctg should not be used in accordance with ISO IEC 80000-2:2009. That is absent at the article. Voproshatel ( talk) 19:01, 4 February 2024 (UTC)