@@Shadow77999 Not humor at all - it's the construction of the word.
@davepubliday6410
2 жыл бұрын
Sine (sin) comes from “sinus” in Latin meaning bend fold or curve. This is so named because the sin math function comes to us through Arabic scholars who called it “jaib”, which is Arabic for “bosom”. They called it that because that Arabic word sounded like the Sanskrit word “jiva”. Jiva is Sanskrit for chord. The ancient Indians called it a chord.
@rajareddy3946
2 жыл бұрын
👏👏👏👏👍
@timkoehler
2 жыл бұрын
okay, but why is it, that in English they called it sine and did not stick with sinus like in other european languages ?
@Guitar_Goon
Жыл бұрын
Chords, when played, produce sine waves. Crazy
@greywolf7422
Жыл бұрын
@@timkoehlerecause English is the unholy child of the Germanic, Romance and Celtic languages. .😋🤪 There is a possibility that some aristocratic mathematicians during the Victorian era in the British empire and the USA made the change, less out of reason and more out of academic prestige, and posibly money from their aristocrat patrons(which was the norm at the time)
@ehatacho2183
10 ай бұрын
@@timkoehler because European only knows how to FK up things.
@jasonjackson4555
6 жыл бұрын
Wait! Come back! What is TanX?! Wow, what a cliffhanger!
@egemen157ify
5 жыл бұрын
tan comes from tangent, whose value you get when you draw a line with that angle to the line that is tangent to the circle in the video, the y value is the value of tangent
@phreedeisele
5 жыл бұрын
tangent from to touch, secant from to cut,
@TheGodlessGuitarist
4 жыл бұрын
I cant sleep now!
@cswalker21
4 жыл бұрын
@@egemen157ify Nice of you to be helpful, but I think it was a comment about how the video ends abruptly before all of the topics introduced have been covered.
@fahimhoq3166
4 жыл бұрын
kzitem.info/news/bejne/w46t3Khnnn2qdII
@palmtrees9474
2 жыл бұрын
Mate, your teaching is absolutely outstanding! The approach is the way it is supposed to be, really! You are a legend! Thank you so much!
@benheideveld4617
5 жыл бұрын
Sinus is Latin, it means gulf and wave but it also means female breast. “Tangens” means “touching”. Trig can easily be made so much more interesting to teens...
@dylanr4854
4 жыл бұрын
Yeah sine and breast are the same exact word in Spanish
@its1110
4 жыл бұрын
So... touch and breast together. Sounds good. I wondered why I liked math. Let's leave out the cutting part, however.
@omarokinawa4743
4 жыл бұрын
Ben Heideveld if i knew that maths would’ve appealed to me
@thanhvinhnguyento7069
4 жыл бұрын
This should be mainstream in textbooks
@its1110
4 жыл бұрын
@@thanhvinhnguyento7069 I have always found that the history of Sciences and Math, and the personalities involved, makes it more interesting. Other subjects, languages and history for example, tell a lot about the people involved.
@palmtrees9474
2 жыл бұрын
Your teaching is so inspiring! It breaths in practical way of thinking! You remind us that math makes sense, and that there is no point in learning on heart!
@petrustefanescu5842
5 жыл бұрын
*Casually draws a pretty good sinusoid*
@skubydubydu
5 жыл бұрын
Petru Stefanescu Hahahahahahahahahahahahahaha
@pontikipsito46
4 жыл бұрын
its not hard to do so
@davewilson13
4 жыл бұрын
The slope is too steep
@briancox4510
Жыл бұрын
Extremely articulate voice! Very easy to listen to. Great teacher!
@nikhilraov100
4 жыл бұрын
I wish I had a teacher like u . U just inspire
@Slarti
4 жыл бұрын
Very interesting. Having been born in 1970, I remember at school having a book that contained tables for sin and cosine values. When we did geometry we had to use these tables. We were banned from using calculators for the first five years of doing maths.
@dudono1744
2 жыл бұрын
couldn't you just approximate with Taylor series? would have taken longer for arcsin/arccos/arctan tho
@eddielienert8171
2 жыл бұрын
yes sure DuDono, let's teach high schoolers taylor series while they can't even do basic trig yet
@haemogoblin7006
2 жыл бұрын
@@eddielienert8171 highschool any% speedrun tricks brah
@eduardokuri1983
2 жыл бұрын
Did someone explain to you what those values were?
@hemandy94
2 жыл бұрын
@@eduardokuri1983 those values were the ratios between the sides of a triangle.
@ccbabu6326
3 жыл бұрын
The way of approach is very fundamental and original; Clarity of thought and enthusiastic to Teach with complete didactics! Thanks a lot !
@davidlloyd3116
6 жыл бұрын
SOH CAH TOA - remember that from high school 40 years ago. Sine = Opposite over Hypotenuse, Cosine = Adjacent over Hypotenuse etc. Useful acronym.
@pinklady7184
6 жыл бұрын
I too remember Soh Cah Toa from 1980s while I was in school. I am back to relearning maths for programming.
@matthew1992
5 жыл бұрын
Wow y’all are old, I learned that last year.
@YashBudhiraja
5 жыл бұрын
This is the shit that keeps me going through the trig portions of papers.
@timpeters7852
5 жыл бұрын
Incidentally, it's also a powerful thum used by dragonborn.
@MadiyanTV
5 жыл бұрын
FUS ROH DAH
@mandharjoshi9394
4 жыл бұрын
actually there is a small addition to the sine theory . the reall word was "jaya" and it was invented by aryabhatta who was an indian mathematician . "jaya " meant "half chord " and was hence used in astronomy . also the jaya was then came to be known as "bosom " which is how the arabians called it but then the europeans mistook the word as chord and then they named it as "sinus" which is an latin word . then it was came to be known as sine by the english . i hope this is informative :) :)
@chnn1367
3 жыл бұрын
A latin word* no offense
@user-mc8wg6qq3b
2 жыл бұрын
@Zeus Pater he corrected his 'an latin word' to a latin word*
@rajx7120
2 жыл бұрын
Cosine was called ardha-jya.
@dobromirzlatev435
2 жыл бұрын
In Bulgaria its still sinus
@amarnaths3014
2 жыл бұрын
Yes. This is what is also documented in the interesting book "Trigonometric Pearls". Proud to belong to the country of great mathematician Aryabhatta.
@kabayanhustler
4 жыл бұрын
Sine: Hi Cosine! How ya doin? Cosine: Oh Hi Sine, Nice Haircut!
@AbiRizky
4 жыл бұрын
Not bad
@saminhaque13-52
4 жыл бұрын
I'm stupid I don't get it
@saminhaque13-52
4 жыл бұрын
Oh its a joke from the video, I thought it had something to do with their properties lol
@Matt-sc6gg
3 жыл бұрын
more like cosine: "I like your cut, G" *slaps the back of the head of sine*
@moikechan
2 жыл бұрын
Best teacher I've ever seen being wasted on disrespectful students that don't appreciate the knowledge they're being given.
@coordinatezero
2 жыл бұрын
Seriously, what the hell is up with all the talking? Why is he not telling them to shut up and listen?
@paoloctsi
4 жыл бұрын
I truly respect your teaching attitude. I wish I can teach as good as you teach.
@UFOENGINE
6 жыл бұрын
You are wrong. Sine's etymology dates back from the ancient Indian word in Sanskrit which is jyā. Then in 10th century mathematics took off in the middle east and this term was adopted by the Islamic scholars which then has been translated from ancient Indian texts from Sanskrit to Arabic as jība. When mathetmatics took off in western Europe (around 1200s), the European scholars went to Madrid (which was islamic at that time) and copied texts from Arabic to Latin which then they made a CURIOUS mistake. When they came across the word jība, they couldn't find any word jība in the Arabic language and they thought that jība is a grammar mistake for the word jaib, which in Latin is 'sinus' (english - 'sin') and it means 'harbor'. Then for the cosine people gave it the name as the companion length of the sine thus cosine.
@squodge
6 жыл бұрын
I don't think anyone really cares about the history of the word. It's the definition and use that's more important.
@squodge
6 жыл бұрын
He's not wrong at all. The word 'sine' does indeed come from Latin. The fact the *concept* of sine is from another culture doesn't change the etymology of the word. I think you're concerned about history/culture rather than etymology. Either way, he's not wrong to say the word 'sine' comes from Latin because it does. I've studied Latin and Maths to a high level, and Eddie is correct.
@UFOENGINE
6 жыл бұрын
Sine is an English translation of the word sinus which in Latin means 'harbor, port'. Why would anyone in the world would call sine a harbor? It dates back from a bad translation mistake. My source is very reliable because it comes from a professor James Tanton who has a Ph.D. in mathematics from Princeton University and who's also a scholar at the Mathematical Association of America and Eddie is wrong on this one. Greetings
@UFOENGINE
6 жыл бұрын
What's his video title? Why are sine & cosine given their names? Right? Well, they were given their names because of a bad translation. That's the correct answer. End of story.
@squodge
6 жыл бұрын
I don't get how you translate 'sinus' as 'harbor' when I've always known it to mean either 'wave' or 'curve'. I've since discovered it can also mean 'bosom'. So, in a sense, it's serendipitous that the mistake has resulted in a word whose meaning has a slight relevance to the subject matter (i.e. 'curve' isn't a million miles away from what a sine wave looks like). Also, harbor in Latin is 'portus' (hence the English 'port'). I've honestly never used 'sinus' to mean harbor in the 7 years of Latin I did in school. Anyway, I think all that matters is that Eddie's students are learning mathematics. He should have just skipped the (incorrect or ambiguous) history lesson on the word 'sine' because it adds nothing to the maths comprehension.
@spacetimemalleable7718
2 жыл бұрын
It is teacher's like Ed Woo that keeps Math alive and well in the world. We need to have much more teacher's like Ed who inspire and get people interested in this exceedingly important subject.
@antonsebastian6484
4 жыл бұрын
That circle is so circle 👀
@chevyDboyMike
2 жыл бұрын
Your eyes just need adjusting
@anteconfig5391
6 жыл бұрын
I get it now. I freaken get it now! 28 years old and no one in my life was ever able to explain it to me until now! Jeez... Thank you very much Mr. Woo
@donegal79
5 жыл бұрын
Really? Until now? You just weren't listening in class.
@thetooginator153
4 жыл бұрын
AnteConfig - Trust me man, I’m the same way. I learn something new every time. That’s why I watch this stuff!
@jasoli1749
2 жыл бұрын
I'm in 2nd year college studying for civil engineering and idk why we weren't taught this when i was in middle school, we just had to memorize the SOH CAH TOA without knowing what they meant and why they existed.
@Prashantchauhansmail
5 жыл бұрын
Sine has been derived Sinus. Aryabhatt described Ardha-jya in Sanskrit for the angle (which we call sine today). Ardha-jya > jya > jiba > jb > jaib > sinus > sine
@radun.stingaciu711
5 жыл бұрын
That's quite a far fetched etymological derivation.
@Prashantchauhansmail
5 жыл бұрын
@@radun.stingaciu711 that's how it is.
@radun.stingaciu711
5 жыл бұрын
@@Prashantchauhansmail How can you arrive from jaib to sinus ? :))
@LWKEsq
5 жыл бұрын
Nonsense.
@laertesindeed
5 жыл бұрын
@Prashant I can't tell if you are trolling or if you were lied to by Indian instructors who tried to pretend that everybody copied you.....when in reality your culture copied the hard work done in babylonia and greece and western europe. Meanwhile, in reality, since much mathematical work had been transmitted to the east before the dark ages and then rediscovered in Arabic forms of writing.....they needed a word in Latin that would properly describe the shape they had in mind. And there was already a latin word which means "fold" or "bay" or "bosom" ....namely the word "Sinus". So they applied that already existing word to the trigonometric shape of Sine that they were talking about in the mathematics.
@StevenTorrey
4 жыл бұрын
"I talk with a funny accent." "No, you listen funny!"
@Shadow77999
3 жыл бұрын
Lol
@troybingham6426
2 жыл бұрын
What a great explanation. So sine takes its name from a sine curve. Cool. Just like the word 'car' takes its name from the vehicle with 4 wheels. It's a car so that's where the word car comes from. My God this was so helpful.
@RaiedHasan
2 жыл бұрын
He is teaching this from before they learnt how sine relates in terms of curves and only when they were learning about triangles.
@Matt-sc6gg
3 жыл бұрын
2:14 compliment as in "I like your cut, G"
@jadeyjung
Жыл бұрын
2:13 "comple(or i)ment as in hey nice haircut" i love you eddie!
@melvinkoshy3355
6 жыл бұрын
Sir, the graphical illustration is indeed insightful. I could visualise that at tan 90, the line can no longer become a tangent to the circle.
@shaktigg
4 жыл бұрын
from wiki Etymologically, the word sine derives from the Sanskrit word for chord, jiva*(jya being its more popular synonym). This was transliterated in Arabic as jiba جيب, which however is meaningless in that language and abbreviated jb جب . Since Arabic is written without short vowels, "jb" was interpreted as the word jaib جيب, which means "bosom". When the Arabic texts were translated in the 12th century into Latin by Gerard of Cremona, he used the Latin equivalent for "bosom", sinus (which means "bosom" or "bay" or "fold").[12][13] Gerard was probably not the first scholar to use this translation; Robert of Chester appears to have preceded him and there is evidence of even earlier usage.[14] The English form sine was introduced in the 1590s.
@alejandrajorge2338
5 жыл бұрын
That is so interesting, those are little terms and explanations that help a lot along the way
@kashis3357
5 жыл бұрын
They are actually wrong 😏
@Barkingspider
5 жыл бұрын
Here is the crazy thing. I learned all this in high school and stressed over exams on it. 20 years later I don’t remember a single thing about it. What a damn waste of time. Time is the only thing we have in life and I was robbed of it. The educational system needs major changes.
@ryanjohnson215
4 жыл бұрын
Never thought I’d be watching a math video for fun XD
@Shadow77999
3 жыл бұрын
Same
@johndaciuk2099
3 жыл бұрын
Sine means wavy thing....and cosine is the complement (90) of sine. It's 90 degrees rotation to the left and begins on the top instead of on the bottom of the curve.
@V21IC
2 ай бұрын
Excellent math teacher. And 9 yrs ago.
@maxmccann5323
2 жыл бұрын
If I had this guy as my Alevel maths teacher I wouldn't care how hard it was I'd have gotten an A instead of dropping the subject
@tomaslaaperi5849
3 жыл бұрын
oh my god, so many pieces are lining up now.. hope you got many cos's for this!
@TheESS1
2 жыл бұрын
Great videos! Lucky students that have you as their teacher 💯
@phinie1487
5 жыл бұрын
I always distinguish sinus and cosinus graph with this trick: sine means "without" in latin. Thus, I recall that it starts at 0. (Whereas cos start at 1)
@JNCressey
5 жыл бұрын
I use the trick of thinking of the unit circle. If you take the point on the circle at angle theta from the x axis in the counter-clockwise direction, the coordinates are (cos theta, sin theta). You start at (1, 0), go around to (0, 1), then (-1, 0), and last (0, -1). And in this way of thinking, the tangent of the circle at that point gives us the tan and cotan values. The length going to the x axis is the tan, and the length going to the y axis is the cotan.
@MrPatrickbuit
4 жыл бұрын
JNCressey That’s literally the origin of the sine and cosine. That’s not a “trick” that’s the definition lmao.
@ProofDetectives
10 ай бұрын
Asslam o alikum. Thank you for video. I enjoyed it. Have a good day.
@racool911
2 жыл бұрын
So a sine curve is "curved curve"?
@KiwiSteveYT
2 жыл бұрын
Better to use a point rotating on a circle to trace out the curves. This also shows why and when sine and cosine are positive or negative... and is the easiest way to use Pythagoras to derive the identity Sin^2(x) + cas^2(x) = 1 Tan is derived from sin/cos, and this is also seen in the rotating point explanation. Etc Judging by the comments, there's some pretty dull teaching going on
@arman4462
4 жыл бұрын
I think eddio whoo sir is the best way for teaching
@shyan042688
2 жыл бұрын
From Wikipedia: "The word sine (Latin sinus) comes from a Latin mistranslation by Robert of Chester of the Arabic jiba, itself a transliteration of the Sanskrit word for half of a chord, jya-ardha. The word cosine derives from a contraction of the medieval Latin complementi sinus."
@aih2012
5 жыл бұрын
Just realized Woo's videos are perfect on new iPhones when you enlarge it
@nandakumarcheiro
4 жыл бұрын
At tan 90 the tangent vanishes to become an infinity convergence as equivalent to sine90/cos 90 interference as point of tangent becomes an infinity at a distance of nonlinearity oscillate between +and -infinity.
@iamjust1normalgirlfromindi446
2 жыл бұрын
2:03 he came back just to say that joke 🙂
@yoni532s9M5w
6 жыл бұрын
I know I'm high-on-pothenous
@kartikkalia01
4 жыл бұрын
Key's visible disappointment
@Username-or9nr
4 жыл бұрын
yoni2356 I said that
@Oshino.
2 жыл бұрын
Everyone else: "Oh yes. Math stuffs." Me: "lol. secx."
@neptuneconsus4992
2 жыл бұрын
I'im in engineering and I didn't know that the "CO" in cosign standed for compliment. Crazy
@randallthomas5207
2 жыл бұрын
I have a degree in engineering, and minor in math. I just learned that the co in cosine is the abbreviation of compliment.
@1dgram
2 жыл бұрын
When I think of tangent I think of the slope of a tangential line, or rise over run. If you look at the unit circle on the left, opposite over adjacent, or dy/dx. But where does it come from? Tangent means touch. For a unit circle, a right triangle formed by a base as a radius of the circle from its center and an angle will have the side opposite that angle touching the circle with a length equal to the tangent of that angle.
@rakeshpradeep6575
3 жыл бұрын
i can smell the markers he's using
@wanyinleung912
5 жыл бұрын
it's the same for tanx and cotx; secx and cscx. cotx(co-tangent x) = tan(90°-x) cscx(co-secant x) = sec(90°-x)
@carultch
2 жыл бұрын
Cotrig(x) = trig(90 - x) works well for standard trig functions. Where we run into a problem, is with hyperbolic trig functions. cosh(x) has nothing to do with sinh(90 degrees - x) or sinh(pi/2 - x).
@mokshchheda4513
4 жыл бұрын
Cant believe I am watching this out of boredom
@rayanemesbah7815
Жыл бұрын
thank you, your student from Algeria
@innocentemmanuel7351
2 жыл бұрын
Beautiful! To think that I studied Mathematics for five years and I just got to know this😂
@neildahlgaard-sigsworth3819
5 жыл бұрын
IIRC sine comes from the Latin for fold (sinus) as in the sinuses we have in our heads.
@tentathesane8032
5 жыл бұрын
Yeah, which was a direct translation from the Sanskrit word Jiva, meaning sinus, that Indian mathematicians were using for the trigonometric function. The Sanskrit word had two meanings, and the other one made more obvious sense for it, but the translators translated it into sinus and it just stayed.
@raiedahmednishat8883
6 жыл бұрын
doing an amazing job thanks sir
@shubhrajit2117
4 жыл бұрын
My TB says "the idea of sine days back to Aryabhatta who called it jya or Ardha-jya that literally means half-chord". This is quite apparent in a unit circle.
@milencenov6421
5 жыл бұрын
In Latin "sinus" means "pocket" (two small entities in our noses are named in the same way because of their shape). In Arabic, they only write consonants and "jb" meant "jeba" (pocket), but was also used for "jiba", which was the Arabic transcript of Sanskrit "jiva" (or "jiya hava" in full) which meant "semi bow" where "bow" was actually used for a chorde in a circle. So, first came a transcript from Sanskrit to Arabic with one sound changed (Arabic uses B, but has no V), then came "homographic" representation of 2 different words (jiba and jeba), then came the wrong translation to Latin. Why the translation was wrong ? Because the first translator to Latin knew very well the word "jeba" for "pocket", but did not know anything about "jiba", because at that time this was a neologism in Arabic. This is like a person in 1950s who knows that in English "computer" is a name of profession, and then he suddenly learns that a new machine is named that way.
@parameshraju7467
4 жыл бұрын
Great teaching. One small suggestion, please write a little larger as it is not visible in our mobile screen.
@mathematicsgururkshrivastava
4 жыл бұрын
Watch Video : अब गणित के बिहारी मास्टर साहब भी वायरल... kzitem.info/news/bejne/yYCJtWGEoWaDoYY
@simranjot1801
4 жыл бұрын
Hello sir your trigonometry videos gives me a lot of clues 👍👍
@cagedtigersteve
5 жыл бұрын
Leaving me hanging on tangent
@albertoolmos21
5 жыл бұрын
Etymology: Sine (English) noun from Latin sinus, meaning cavity, ex. the nasal sinus or facial cavities (sinus in French , seno in Spanish/Portuguese ). Sine (Latin) adjective meaning concave, empty, without, ex. sine qua non: a condition "without which no" other things are possible (sans French, sin Spanish, sem Portuguese ). In math the term was originally referred to the concavity formed by a circular sector, i.e. the side b of a right triangle, defined as the base (side a) divided by the radius of the circular sector or hypotenuse (side c).
@clayz1
4 жыл бұрын
It’s nice to know this. It’s machine shop math otherwise. Oh, and Eddie Woo wears a nice tie.
@rafiulislamatanu147
2 жыл бұрын
Excellent.....
@sgorneau
4 жыл бұрын
1:48 I love the Australian accent ... "I know some of you know what the cooeeuuaarrrrr in cosine means."
@V21IC
2 ай бұрын
Sin and cuzzin!😂
@maycodes
4 жыл бұрын
Tangent comes from word Tangible, something that Touches.
@tausifmahmmad
4 жыл бұрын
Amazing ... nicely Explain .
@eduardokuri1983
2 жыл бұрын
Ethimologically, sine comes from "sinus" (cavity in latin) because of some translation mistake done by roman scribes and the fact that arabic mathematicians shortened their words without a way to know for certain what they meant
@backwardsatom6839
3 жыл бұрын
Love your videos!
@hongxi3650
4 жыл бұрын
Cosine= sin of the complementary angle
@mechanicalredroom9882
5 жыл бұрын
RIP the joke at 1:59
@davidlloyd3116
2 жыл бұрын
SOH CAH TOA That’s how I remember it!
@kinshuksinghania4289
2 жыл бұрын
Same reason you and I have names!! 🤷🏻♂️ Just imagine calling sine 'THE FUNCTION WHICH HAS NO NAME' and calling cosine 'THE OTHER FUNCTION WHICH HAS NO NAME' 🤣
@carultch
2 жыл бұрын
The question is not why they are given names in general, but why they are given those specific names of all other possible names. We could call them rise wave for sine and coast wave for cosine.
@dhov760
4 жыл бұрын
Wow I just learned something, thanks man.
@prashanthkumar0
5 жыл бұрын
a really great teacher 😍😍👏👏👏👌👌👍👍
@SenorPotato2
2 жыл бұрын
what level are these lessons? great teacher!
@tonyhoang987
5 жыл бұрын
I'm a fan of sin, sec and tan as the basic functions and 1/sin, sec, tan as cos versions. Its just more consistent to have cos mean one divided by that trig function
@elyseepasteur6163
5 жыл бұрын
Please, do you mind explaning the sec. Help!
@trollop_7
4 жыл бұрын
@@elyseepasteur6163 Sec's education?
@Humaka01
2 жыл бұрын
i wish you were my math teacher.. *tears*
@mahmoudbaraka987
2 жыл бұрын
well i guess that sine is a translation for jib in arabic that not accuratly translated jib جيب in arabic means the place or location of entering in trigeometry that means the ratio between the entere of the angle to its hypo
@abhinavsanjana
5 жыл бұрын
Hi Sir, Can you make Little Longer Videos ...
@benitoherrero3895
5 ай бұрын
Tangible from latin (Tangere), it means that touch.
@benzot54
6 жыл бұрын
With all due respect, I think that sin derives from latin sinus (gulf like a gulf in the sea) from the shape of the function
@laertesindeed
5 жыл бұрын
@benzot It does derive from sinus. There is some kind of very strange nationalistic bigotry being taught in certain eastern schools where they feel the need to lie to maintain a false pride.
@benheideveld4617
5 жыл бұрын
Sinus also means female breast. “Tangens” means “touching”. Trig can easily be made so much more interesting to teens...
@anjalisharotri6939
3 жыл бұрын
Sir the vedio quality is not good. Im missing out. Also thre is noise. Its really intresting but I can't get enough
@Metalhammer1993
6 жыл бұрын
nice job man. YOu manage to even teach an old bear like me something new. i kinda thought it have something to do with nose as the bone in the nose is called sinus something (forgot it) and the curve kinda looks like looking onto that bone^^ and come on we nkwo Cosine is called sine cause he´s always flirting with sine^^
@vankarpavinbhai3176
5 жыл бұрын
KZitem in 2019 suggest this on my maths exam. Google is spying on us.
@syedmustafa9123
5 жыл бұрын
Some People Have Curly Brown Hair Through Proper Brushing
@ericl8743
4 жыл бұрын
I was not expecting him to be Australian
@anindyadas635
3 жыл бұрын
Why people like are not available in Bangladesh ?? why man why!! BTW one of the learner of you... love from Bangladesh..
@matthewbaker5972
3 жыл бұрын
Jesus is available to all, he loves you so much and he saves, praise Jesus!!!
@mandaparajosue
2 жыл бұрын
I am afraid it is wrong, because the word sinus exists before graphics representation in cartesian axes; even before the concept of function. This video's explanation has the most common mistake about the origin of Trigonometric Function names. The Arabic word Jaib was translated into Latim as Sinus. But the word that should have been translated was Jiba, which means something like a "bowstring". In Arabic is common use just consonants to wright a word. Both words (Jaib and Jiba) have the same consonants, but Jiba was as less common word, specially because it came from Sanskrit
@spoooderminlovesdolantrump4635
6 жыл бұрын
"Sine" came before the term "sinusoidal"
@Kokurorokuko
5 жыл бұрын
lol
@kashis3357
5 жыл бұрын
Sine doesn't mean anything, there was an error in translation from Arabic to Latin back then. The real term was "jiva".
@tentathesane8032
5 жыл бұрын
@@kashis3357 not Arabic, Sanskrit. The Sanskrit word for sinus is Jiva, and Indian and Arabic mathematicians used it for sin and it was translated directly into Greek or Latin
@kashis3357
5 жыл бұрын
@@tentathesane8032 i knew that
@kashis3357
5 жыл бұрын
@@tentathesane8032 but when they translated it from Sanskrit(jiva) to Arabic(jiba) they abbreviated the word as they do in Arabic to 'Jb' and when the Europeans found the texts all the confusion began.
@aligamiles
4 жыл бұрын
I wish I had a teacher like this
@bantichandravanshi5681
5 жыл бұрын
Sin & Cosine are just English translation of sanskrit word "ज्या" & "कोज्या"
@coolcool9634
5 жыл бұрын
An English translation of a Latin mistranslation of an Arabic translation of the Sanskrit words***
@rgudduu
4 жыл бұрын
jyaa means?
@carultch
Жыл бұрын
@@rgudduu Jyaa (ज्या) means bowstring, like from a bow and arrow. When you draw out how sine is represented on the unit circle, and draw it with the symmetric part on the negative side of the y-axis, the arc along the circle, and the altitude line of the triangle together, look like a bow and arrow. Kojyaa (कोज्या) was the Sanskrit name for cosine. Interesting how the prefix still sounds the same.
@rgudduu
Жыл бұрын
@@carultch , thanks. Wikipedia has a good article. Pretty clear now
@larrykile3190
2 жыл бұрын
I can't believe the amount of chatter in the classroom. That would drive me nuts as a teacher.
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