- Fleur_ ( @Fleur_@lemm.ee ) English19•1 day ago
Is this genuine? Like is the unit circle really fucking you up that bad?
- MBM ( @MBM@lemmings.world ) English15•1 day ago
You leave my unit circle alone!
- Kalkaline ( @Kalkaline@leminal.space ) English19•2 days ago
I’m pretty dumb, so I don’t understand this one.
- bizarroland ( @bizarroland@fedia.io ) 11•2 days ago
Pythagorean theorem.
Although, don’t solve this or else Pythagoras might throw you off of a boat
- CoconutPetesPaella ( @CoconutPetesPaella@lemmy.one ) English8•2 days ago
Pretty sure this is Pythagorean Identity, theorem is a²+b²=c²
- pumpkinseedoil ( @pumpkinseedoil@mander.xyz ) English10•2 days ago
Why?
- Wolf314159 ( @Wolf314159@startrek.website ) English5•2 days ago
SOH CAH TOA
- OpenStars ( @OpenStars@piefed.social ) 13•2 days ago
Ah, sohcahtoa. Not to be confused with
- pumpkinseedoil ( @pumpkinseedoil@mander.xyz ) English6•2 days ago
Please elaborate.
- Wolf314159 ( @Wolf314159@startrek.website ) English8•2 days ago
Sine of theta is the ratio of the lengths of the Opposite side over the Hypotenuse (SOH). Cosine of theta is Adjacent over Hypotenuse (CAH). Tangent of theta is Opposite over Adjacent (TOA).
- pumpkinseedoil ( @pumpkinseedoil@mander.xyz ) English6•1 day ago
Oh you’re saying opposite site and adjacent site in English
Anyway how is the r=1 circle harmful for that?
- BalooWasWahoo ( @BalooWasWahoo@links.hackliberty.org ) English5•1 day ago
It’s not. It’s just one of those things that people groan about because when you first learn it the concept is confusing. After about 15 minutes of instruction on a unit circle, it’s not a big deal at all.
- NigelSimmons ( @NigelSimmons@startrek.website ) English9•2 days ago
Believe this was featured in a paper that recently used trig to prove the Pythagorean theorem (previously thought to be a circular definition). I think some highschoolers cracked it as part of a mathematics challenge or something.
- swab148 ( @swab148@startrek.website ) English4•2 days ago
Someone needs to turn this into loss
- ryannathans ( @ryannathans@aussie.zone ) English3•2 days ago
Why is it 1
- F04118F ( @F04118F@feddit.nl ) English18•2 days ago
It was freely chosen for simplicity.
If you choose another R, the other sides (x and y) become R*cos(th) and R*sin(th)
I don’t understand what is harmful about the unity circle either.
- Swedneck ( @Swedneck@discuss.tchncs.de ) English3•1 day ago
for the same reason that rulers start with 1, it would be utterly pointless to use anything else.
- ryannathans ( @ryannathans@aussie.zone ) English4•1 day ago
Your ruler starts with 1? How do you measure stuff between 0 and 1?
- Swedneck ( @Swedneck@discuss.tchncs.de ) English3•1 day ago
those are unlabeled, have you ever seen a ruler?
- ryannathans ( @ryannathans@aussie.zone ) English2•19 hours ago
I am fascinated, can you show a picture
- mexicancartel ( @mexicancartel@lemmy.dbzer0.com ) English3•1 day ago
Zero is not unlabelled lol
- bizarroland ( @bizarroland@fedia.io ) 7•2 days ago
Any circle could have its radius technically be 1, as long as you set the units of measurement so that 1 equals the radius of the circle.
- BalooWasWahoo ( @BalooWasWahoo@links.hackliberty.org ) English2•1 day ago
units? what are those? I never use units, or pay attention to capitals. pure math ftw, baby!
spoiler
Rapidly hides from the science professors
- mexicancartel ( @mexicancartel@lemmy.dbzer0.com ) English2•1 day ago
Pure math uses units. Like they say “1 unit”
- within_epsilon ( @within_epsilon@beehaw.org ) English2•15 hours ago
Sometimes the units are given cute names like “wiggly waggly units” to make physicists cringe. Acknowledging a unit with cute names when the unit is not important is entertaining.
- Wolf314159 ( @Wolf314159@startrek.website ) English3•2 days ago
Because it’s a unit circle.