Talk:Gudermannian function

message: Since the Gudermannian function is a trig function, it would follow that its inverse is an arc function, therefore \operatorname{arcgd}(x)={\rm gd}^{-1}(x)\, should be a valid notation.  ~Kaimbridge~ 13:37, 23 February 2006 (UTC)
thread_title:  Inverse gd = arcgd 

message: I'm not familiar with how to edit the {reflist} on this page, so I was wondering if someone else could make this edit for me -- the book "Hyperbolic Functions", which is cited in Note 1, was written by George F. Becker and C.E. van Orstrand. (not "Georg", as it says now.)  —Preceding unsigned comment added by 121.107.184.243 (talk) 05:32, 15 January 2011 (UTC)
thread_title:  References 

message: I got rather over enthusiastic after carrying out a simple edit. 
New info and improved references is uncontoversial.
I have restored arc for the inverse hyperbolic functions. This is good enough for NIST (see ref number 1). I suspect the six letter nomenclature dates from the days of early Fortran when all names were so restricted.
The statement about the unsuitability of some definitions needs to be reworded and clarified a little without unbalancing the paragraph.
Please check my changes carefully. Most are cosmetic.
Peter Mercator (talk) 18:09, 2 February 2015 (UTC)
thread_title:  Spring clean 

message: Good, Michael R. R.; Anderson, Paul R.; Evans, Charles R. (2013). "Time dependence of particle creation from accelerating mirrors". Physical Review D 88 (2): 025023. arXiv:1303.6756. Bibcode:2013PhRvD..88b5023G. doi:10.1103/PhysRevD.88.025023, does not explicitly reference the Gudermanian.  If someone knows where the implicit reference is, could you please clarify the reference?  — Preceding unsigned comment added by Hcarter333 (talk • contribs) 01:06, 20 July 2016 (UTC)
thread_title:  Gudermanian not explicitly mentioned in Casimir reference 

message: The second image shows \tan \frac{1}{2}\phi = \tan \frac{1}{2}\psi, missing an h. --2607:FEA8:86DC:80E0:21E1:ADE:6B93:28DF (talk) 19:01, 18 July 2022 (UTC)
replies: text: Good catch, thanks! Let me fix that. -jacobolus (t) 22:26, 18 July 2022 (UTC)
thread_title:  Image error 

message: the two equations first defining the real abs real inverse functions psi and phi are not displaying correctly on mobile. they cut off right after the integral is complete, the page won't allow scrollling over or zooming out, and when i rotate the display, the definitions are cut off by the captioned images. don't know what would go into fixing this up, but this page could use that fix. not sure if other equations or other mobile devices are having the same issue, but im dropping this here because i can 2600:6C47:A0F0:8390:DCAA:D8AA:912D:67DC (talk) 15:15, 31 May 2023 (UTC)
replies: text: adding - yes it applies to the whole article, multiple functions are cut off. and side scroll is disabled. other pages have embeded the function images in an individual side-scrollable format or allow side-scrolling for the whole page. 2600:6C47:A0F0:8390:DCAA:D8AA:912D:67DC (talk) 15:17, 31 May 2023 (UTC)
replies: text: Did that solve it? –jacobolus (t) 15:53, 31 May 2023 (UTC)
replies: text: YES!!!! thank you so much for the prompt edit :D now i can read more math!!! thank you again ^_^ -K 2600:6C47:A0F0:8390:F496:6307:4839:CA22 (talk) 15:29, 13 June 2023 (UTC)
thread_title:  mobile issues