Talk:Degree of curvature

message: This article (page) opens poorly (is badly centered). Peter Horn 14:42, 10 October 2006 (UTC)
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message: Degree of curvature#Formula from chord length
r = \frac{C}{2 \sin \left( \frac{D_\text{C}}{2} \right) } does not give a correct answer but a radius that is half of what it should be. r = \frac{C}{\sin \left( \frac{D_\text{C}}{2} \right) } gives the correct answer for a  chord. Peter Horn User talk 01:00, 7 August 2021 (UTC)
replies: text: I looked at the trig, and I think you're mistaken. You have to divide the chord length by two to create the right triangle from the isosceles triangle. But it's been a lot of years since I did many sines and cosines, so I'm open to the notion that I goofed somewhere. Indefatigable (talk) 16:34, 7 August 2021 (UTC)
replies: text:  Your memory of trig is correct, so the formula should be adjusted accordingly. However,the original formula kept giving me a radius half of what it should be. Peter Horn User talk 18:51, 7 August 2021 (UTC)
replies: text:  My T(exas) I(instruments) 36X SOLAR appears to have gone bonkers. Peter Horn User talk 19:43, 7 August 2021 (UTC)
replies: text:   The original formula gives me a radius of 239.17 feet for a 12 degree angle, it should be double that. Peter Horn User talk 20:25, 7 August 2021 (UTC)
replies: text: When C = 100 ft and DC = 12°,  the formula with 2 in the denominator yields 478.3 ft.  I'm wondering why you're using a 50 ft chord - isn't that unusual? I'm not a surveyor, but aren't 100 ft chords the common practice? And where are you getting the "correct" answer from? A book of surveyor's tables? Based on 100 ft chords? Indefatigable (talk) 21:18, 7 August 2021 (UTC)

text: Of course, the chord is 100 ft. Why did I get hung up on 50 ft chord? Peter Horn User talk 23:08, 21 August 2021 (UTC)
thread_title:  This does not work 

message: Should we add a link to the Curved screens article from here? 75.142.198.200 (talk) 04:17, 27 November 2021 (UTC)
replies: text: That article is irrelevant. Peter Horn User talk 04:46, 27 November 2021 (UTC)
thread_title:  Curvature and Curved screens