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Talk:Length of an arc between two angles: Difference between revisions
Talk:Length of an arc between two angles (view source)
Revision as of 00:38, 20 April 2020
, 4 years ago→Task needs clarification
Thundergnat (talk | contribs) (→Task needs clarification: I wouldn't hold my breath) |
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:I wouldn't hold out too much hope. [[User:Molo32|Molo32]] has a habit of dumping under specced, confusing, tasks on the site with no follow up, bad markup and no reference implementation. Honestly it seems like they are just trying to get someone to do their homework for them. Been around for nearly two years and in that time; has contributed exactly zero implementations and hasn't bothered to investigate correct markup. --[[User:Thundergnat|Thundergnat]] ([[User talk:Thundergnat|talk]]) 19:12, 15 March 2020 (UTC)
::Yeah, I think you're probably right. BTW, well done on completing the Perl 6 to Raku renaming exercise - a massive task if ever there was one :) --[[User:PureFox|PureFox]] ([[User talk:PureFox|talk]]) 19:32, 15 March 2020 (UTC)
:One interpretation could be given an {x,y} centre ''or'' the radius, and {x1,y1}, {x2,y2} of two points on the circumference ''or'' their angles ''or'' the chord length, ''and'' clockwise/anti-clockwise ''or'' longer/shorter... and some partial combinations of those inputs w/could yield "ambiguous" or "unsolveable" as a result... --[[User:Petelomax|Pete Lomax]] ([[User talk:Petelomax|talk]]) 21:55, 15 March 2020 (UTC)
::Several interpretations are possible but a consensus seems to have formed that the Julia approach is what's intended. So, unless and until we hear from the author otherwise, I've decided to go with that. Have amended the task description accordingly so it's now clear enough to be treated as a draft task. --[[User:PureFox|PureFox]] ([[User talk:PureFox|talk]]) 10:03, 16 March 2020 (UTC)
"Major arc" has a clear definition that should have been given in the task description. From Wikipedia:
Every pair of distinct points on a circle determines two arcs. If the two points are not directly opposite each other, one of these arcs, the minor arc, will subtend an angle at the centre of the circle that is less than π radians (180 degrees), and the other arc, the major arc, will subtend an angle greater than π radians. It's unfortunate that the solutions offered are doing something else.
== normalization of angles ==
Perhaps it should be mentioned that the angles should be normalized to a unit circle. It's simple enough to add angle normalization to the code. Negative angles can be a concern, depending on how one interprets "which" arc is intended. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 13:31, 16 March 2020 (UTC)
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