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Why is 'x' the unknown? | Terry Moore

www.ted.com Why is 'x' the symbol for an unknown? In this short and funny talk, Terry Moore gives the surprising answer.
TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the "Sixth Sense" wearable tech, and "Lost" producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at www.ted.com/translate
If you have questions or comments about this or other TED videos, please go to support.ted.com

Пікірлер: 879

  • @archerrobinhood
    @archerrobinhood12 жыл бұрын

    Really interesting because in the Maltese language (which has Arabic routes) the letter 'X' is pronounced as 'Shh'!

  • @PerfectMo

    @PerfectMo

    2 жыл бұрын

    Thats really cool! Btw are you still alive?

  • @kazisharmin6079

    @kazisharmin6079

    2 жыл бұрын

    @@PerfectMo 😆

  • @RafahDeath-ms3hy

    @RafahDeath-ms3hy

    4 ай бұрын

    ​@@PerfectMoyou are still alive?

  • @DanielSouza..

    @DanielSouza..

    2 ай бұрын

    In portuguese too

  • @cycler8
    @cycler83 жыл бұрын

    Arabic is indeed a very logical, very consistent language. It also has so many sounds - consonants - totally strage to european languages.

  • @lovebossdz131

    @lovebossdz131

    2 жыл бұрын

    And their is 12 Million words in Arabic

  • @user-1g6hfpy4y.

    @user-1g6hfpy4y.

    2 жыл бұрын

    Больше всего звуков наверное в ингушском языке

  • @josephostar3517
    @josephostar35174 жыл бұрын

    As an Arabian I apologize for all the students that failed in their math exams because of X

  • @hustlewithhimanshu8899

    @hustlewithhimanshu8899

    3 жыл бұрын

    We won't forgive you. Ever 😠 😆

  • @josephostar3517

    @josephostar3517

    3 жыл бұрын

    @@hustlewithhimanshu8899 same. I can't forgive my ancestors

  • @hustlewithhimanshu8899

    @hustlewithhimanshu8899

    3 жыл бұрын

    @@josephostar3517 😆😆😆 Jokes apart my friend. I think they made maths easier. It would have been even harder otherwise.

  • @danielrasheedi

    @danielrasheedi

    3 жыл бұрын

    when al shayun was replace by the greek letter χ, what the word become? al khayun??? please helppp

  • @tarusake7326

    @tarusake7326

    3 жыл бұрын

    Hehhhhh

  • @alazdi
    @alazdi11 жыл бұрын

    يوم ان كنا مسلمين قولاً وفعلاً كنا اهلا للعلوم والحضاره .

  • @Ilelo1
    @Ilelo16 жыл бұрын

    انا شحص من الصومال من مواليد المكة الربية السعودية وبفضلها تربيت في مجتمع يتحدث باللغة العربية وهذا الامر افضل ما حصل حياتي

  • @bananabread6284

    @bananabread6284

    3 жыл бұрын

    what is this

  • @ibr7515

    @ibr7515

    3 жыл бұрын

    Here's the translation kinda: "I'm a Somali person, but was born in Saudi arabia (mekka specifically)" then he talks about how much he loves the language, and how magical it is, that's basically it :)

  • @sarveshmalayanss2572

    @sarveshmalayanss2572

    3 жыл бұрын

    @@ibr7515 thanks

  • @peopleslive6868

    @peopleslive6868

    3 жыл бұрын

    سبحان الله خالق اللغات والبشر وجاعل اللغة العربية لغة القرآن الكريم المعجز ... وقد تحدى البشر أن يأتوا بسورةٍ من مثله او حتى اية ...ولقد احسنت الوصف ... فأن من البيانِ لسحراً ..وهي بالفعل لغةْ مختاره لتكون خارقةً للطبيعة مخلوقةً من الله وحبها خالدٌ خلود الدنيا والمرجح ان تكون لغة اهل الجنة...اللهم اجعلنا منهم .... تحياتي

  • @begumercemal7204
    @begumercemal72048 жыл бұрын

    Very inspiring information. While I was studying at high school, fistly my friend recommended this speech. When I watched, I liked very much.

  • @AnasALMARIE
    @AnasALMARIE12 жыл бұрын

    One of the most short and enjoyable on TED so far.

  • @user-if7zr8ln8l
    @user-if7zr8ln8l6 жыл бұрын

    I didn't know that. This story is so interesting!!!

  • @wilhufftarkin8543
    @wilhufftarkin85434 жыл бұрын

    But the good thing about this is that it helped us to make mathematics highly symbolic and therefore more simple to write complex things.

  • @bacinthezahab7818

    @bacinthezahab7818

    3 жыл бұрын

    good remarque. Human history is amazing , I don't think anything is a coincidence though , but definitely not always accurately calculated by intelligent minds. The only explanation for me is presence of a greater planner.

  • @tornquist92
    @tornquist9212 жыл бұрын

    It's amazing how a solution to a language problem can end up having a huge influence on math

  • @thejoker8209

    @thejoker8209

    3 жыл бұрын

    I wished the spinach could say that Arabic word (sh) because of that happend we wouldn't be suffering because of them😂💔

  • @BigBadBong
    @BigBadBong11 жыл бұрын

    This man gained my respect, as he showed the respect to my mother language !

  • @itsbilal9876

    @itsbilal9876

    3 жыл бұрын

    Not Showed its X-owed

  • @vintage1351
    @vintage135110 жыл бұрын

    That was the weirdest TED talk ever (or at least that I've seen so far)... And that was definitely worth Sharing.

  • @moharramkhalil2408
    @moharramkhalil24083 жыл бұрын

    Great video, thank you sir.

  • @lyaly000
    @lyaly00012 жыл бұрын

    He didn't mention why Y is also used to be the symbol for unknown. The reason is because the word Shy = شيء contains the letter Y at the end so it was common to use X ans Y as symbols for unknown.

  • @user-tm7mr9je9v

    @user-tm7mr9je9v

    Ай бұрын

    AFTER X, YOU CAN USE ANY ALPHABETS AS UNKNOWN. IF YOU HAVE 2 KIND OF UNKNOWN, YOU CAN'T USE X AND X, THEN THEY USED X AND Y, OR X AND Z ETC.

  • @xSeattler
    @xSeattler12 жыл бұрын

    Very Interesting. It's Amazing what information you come across when you find the roots of words

  • @PsychoMissie
    @PsychoMissie12 жыл бұрын

    Wow, I am Egyptian and I've learned all my life in English, but never knew the origin of the "x" symbol but now ! =)

  • @wushish
    @wushish12 жыл бұрын

    I've sworn off TED videos until my exam was over but this was just too intriguing haha

  • @hadifmohamed690
    @hadifmohamed6908 жыл бұрын

    Love my language

  • @phenix073
    @phenix07310 жыл бұрын

    Vignesh Balaji, that's what Mr Terry Moore has explained: chi is a deformation of the arabic word "شيء" (which means "something") which is pronounced "chay'a" in arabic and deformed to "chi" for an easy pronunciation by spanish, so that's why they chose the grec letter "chi"

  • @DudeRandom
    @DudeRandom2 жыл бұрын

    That build-up was brilliant

  • @EllaABo
    @EllaABo12 жыл бұрын

    This was very interesting. I learned something new today!

  • @sparkybluefox
    @sparkybluefox10 жыл бұрын

    This was great fun! Bravo!

  • @kpacuBua
    @kpacuBua10 жыл бұрын

    'when you are around i wont show up' - music to my ears :)

  • @Biology_lady
    @Biology_lady9 жыл бұрын

    great! I loved this information

  • @ManuVyas-social
    @ManuVyas-social10 жыл бұрын

    this is fascinating. and that ending was so funny :-D

  • @MarHam1987
    @MarHam198712 жыл бұрын

    Great Video !! thanx 4 sharing

  • @classic5005
    @classic50058 жыл бұрын

    I like it when those Romans applause saying: Yeah 3:46

  • @yousefal-sabah9682
    @yousefal-sabah96823 жыл бұрын

    Terry Moore - You are brilliant

  • @tylerbrown2053
    @tylerbrown20539 жыл бұрын

    I barely understood that and still watched the whole thing. Sweet.

  • @MilosevBranko
    @MilosevBranko12 жыл бұрын

    How could I live without this information?!

  • @rowes717
    @rowes71712 жыл бұрын

    very nice!! simple questions very often have hard answers! My first language is Arabic and I didn't thought that this the reason behind using 'x' as the unknown is the word "شيئ" which means 'something" in english. I thought the reason behind that is we use a letter in Arabic that similar to 'x' in english alphabet which is the letter "س". In middle school, we always used "س" as the unknown. I think the use of the letter "س" Arabic mathematics came from 17th century english math. I'm not sure.

  • @NormallyImKim
    @NormallyImKim5 жыл бұрын

    Really funny. Never expected this to come my way...

  • @manaspathak6452
    @manaspathak64527 жыл бұрын

    Lovely lecture

  • @malkum71
    @malkum717 жыл бұрын

    شكرا جزيلا

  • @Dude902
    @Dude90212 жыл бұрын

    I like the tl;dr version of the talk he gives at the end.

  • @The420DeLiRiUm
    @The420DeLiRiUm12 жыл бұрын

    I'm fluent in Arabic! But I grew up mostly in Kansas. This is awesome!

  • @sawsannh
    @sawsannh12 жыл бұрын

    very neat, organized and interesting reasoning !!

  • @michealking61
    @michealking617 жыл бұрын

    Ha ha ha ha love this honest to god it really sounded like he was going to say "You can't say sh** in Spanish" lollllllll

  • @mrx993
    @mrx99312 жыл бұрын

    good stuff, thanks for sharing

  • @Restonboi
    @Restonboi11 жыл бұрын

    A GREAT GREAT GREAT clip!!! Love it ...

  • @ocdraridrogonel
    @ocdraridrogonel Жыл бұрын

    This was really beautiful...

  • @AlienSkaterO
    @AlienSkaterO12 жыл бұрын

    I love it when the western world acknowledges arabs and their accomplishments :') makes me proud to be an arab . I know nowadays we aren't as productive as before , but i really do hope the arab kindgom becomes what it once was ...

  • @shammaalali6889

    @shammaalali6889

    2 жыл бұрын

    “What it once was” is unknown to most people especially the Europeans. Many believe the lie that we are people from the desert that had to contribution of any kind in any field. So not true!

  • @Ray-ug1yr
    @Ray-ug1yr9 жыл бұрын

    His hair is dope . Love it

  • @perecabrils
    @perecabrils10 жыл бұрын

    Most of these translations were made in a monastery in Ripoll. Monks from Ripoll used to spoke many languages, but their common language was Catalan, not Spanish. In Catalan we pronounce the letter X exactly as SH is pronouced in English.

  • @maravillas7050

    @maravillas7050

    10 жыл бұрын

    As in Galicia, Asturias & The País Vasco..

  • @tahaalaswad1791

    @tahaalaswad1791

    3 жыл бұрын

    i realized that when I knew Xavi de BFC :)

  • @SezSays
    @SezSays12 жыл бұрын

    Great little video.

  • @amaalb1
    @amaalb112 жыл бұрын

    Amazing!

  • @PhilipeMota
    @PhilipeMota12 жыл бұрын

    What I am suggesting is that that very same degree you mentioned is a compilation of accomplishments of past individuals. That in their turn would build on top of others. But I do see your point. Pride is not the best suitable feeling towards our cultural ancestors. Perhaps admiration and inspiration would be more fit. Even so the feeling of admiration for the deeds of the group one considers oneself to be part is perfectly compatible with one of the meanings of Pride. Correct me if I'm wrong.

  • @JackMayerz
    @JackMayerz12 жыл бұрын

    Great talk.

  • @txvoltaire
    @txvoltaire12 жыл бұрын

    The older form of Spanish used the letter X to spell the sh sound (as is still done in the Portuguese and Catalan languages). This is why Spanish-America is peppered with place names spelled with X (such as Xochimilco). The letter X eventually began to be pronounced as either J or S (and often respelled to reflect that fact). That is why, for instance, in Spanish the names Javier and Xavier are both seen to this day, while only the form with the X is used in Portuguese and Catalan.

  • @aliQ7r

    @aliQ7r

    3 жыл бұрын

    Oh so thats how خ is written in latin

  • @kls9730

    @kls9730

    9 ай бұрын

    Xochimilco is an Aztec word. It predates European colonization by quite a bit.

  • @ramybadawy1676

    @ramybadawy1676

    4 ай бұрын

    Like xavi, barcelona football player

  • @EngAhmedGoGo
    @EngAhmedGoGo12 жыл бұрын

    this was before we used the equations س+ص = ع . the old algebra was mostly done by long terms like شيئ + 3 = 7. you can also see that in the old algebra it was mostly definitions

  • @Vitorpaulo3
    @Vitorpaulo312 жыл бұрын

    Very interesting and funny!

  • @Zmonster2014
    @Zmonster201412 жыл бұрын

    lmfao i love the ending

  • @dannisjc
    @dannisjc12 жыл бұрын

    Yes, I've always wondered about that!

  • @tohopes
    @tohopes6 жыл бұрын

    Spanish letter "x" was also used to transcribe "sh" sounds in native Mexican words.

  • @surendersingal2192
    @surendersingal219210 ай бұрын

    Thank you

  • @DinoWinoSaur
    @DinoWinoSaur12 жыл бұрын

    great talk

  • @GreatG0dOm
    @GreatG0dOm12 жыл бұрын

    X also marks the spot to dig for treasure. -- Very interesting talk.

  • @AhmedEssamFakharany
    @AhmedEssamFakharany10 жыл бұрын

    proud to be an Arabian, proud to be a son to my ancestors

  • @yogendrasinh

    @yogendrasinh

    10 жыл бұрын

    What happened nowadays to this great rich culture?

  • @AhmedEssamFakharany

    @AhmedEssamFakharany

    10 жыл бұрын

    Well its a big meesed up story, it involves terrany, injustice and ignoring education :(

  • @coolro3684

    @coolro3684

    8 жыл бұрын

    +Ahmed Essam El Fakharany actually there countless scientists in the USA who are Arabs.

  • @majeedaljasari30

    @majeedaljasari30

    7 жыл бұрын

    coolro Arabs was teaching your dear US scientists

  • @Alan.Walker29

    @Alan.Walker29

    5 жыл бұрын

    يا عم اتنيل بئا بلا قرف فخور ايه بس .. ان الله لا يحب كل مختال فخور

  • @duazaitoun
    @duazaitoun7 жыл бұрын

    Fantastic

  • @mohamedashraf4516
    @mohamedashraf451611 жыл бұрын

    i like his way :) respect !

  • @daobagua
    @daobagua12 жыл бұрын

    I couldn't agree more. Thankfully, with the advances of globalization and global communication, I feel that these differences will be a thing of the past (give it a generation or 2). Best wishes.

  • @kellystone84
    @kellystone849 жыл бұрын

    As soon as numbers became letters I was done with math

  • @connorskudlarek3119

    @connorskudlarek3119

    9 жыл бұрын

    The letter is just a symbol to say "I don't know what this number is right now". You can do all the same math with it as you did numbers, because it is a number itself that you simply don't know yet.

  • @Elein967

    @Elein967

    8 жыл бұрын

    Haha me too xD

  • @suleimanjj9289

    @suleimanjj9289

    7 жыл бұрын

    Kelly Stone i swear I'm like u 😂😂😂😂😂😂😂😂

  • @abdelazizmetali1938

    @abdelazizmetali1938

    6 жыл бұрын

    Connor Skudlarek no we know what is the x its just a variation betwin numbers

  • @hamza-trabelsi

    @hamza-trabelsi

    6 жыл бұрын

    same here xD

  • @yourluckystar94
    @yourluckystar9411 жыл бұрын

    Haha! Loved it!

  • @BANAZIZ
    @BANAZIZ12 жыл бұрын

    you are right my brother , as un arabic woman who lived in west for several years, I hope that too.

  • @raydredX
    @raydredX12 жыл бұрын

    Not world changing but a it's pretty curious question answered. I like it.

  • @bgangioni
    @bgangioni11 жыл бұрын

    Curiously the sound "sh" later made it into Spanish, at least in some parts of Argentina, Uruguay ("y", "ll") and Mexico ("ch").

  • @LAnonHubbard
    @LAnonHubbard12 жыл бұрын

    You make some very good points. Being proud just because you're here is silly.

  • @muitranvan0692
    @muitranvan06927 жыл бұрын

    so helpfull thank you

  • @drditup
    @drditup12 жыл бұрын

    lovely!

  • @elencitlalicortes1980
    @elencitlalicortes19807 жыл бұрын

    Nunca pense que la letra "x" aya surgido asi ,es sorprenderte saber su significado

  • @iiAhamd
    @iiAhamd12 жыл бұрын

    i really don't know who would dislike this kind of information :?

  • @kholoudelfeqqy3073
    @kholoudelfeqqy30737 жыл бұрын

    THANK YOU

  • @homad89
    @homad8912 жыл бұрын

    as a replay to yours !

  • @HiAdrian
    @HiAdrian12 жыл бұрын

    Witty closing remark :)

  • @TheGerogero
    @TheGerogero12 жыл бұрын

    Reading the title I facepalmed. Turned out to be fascinating!

  • @user-vv2ub7wd7f
    @user-vv2ub7wd7f7 жыл бұрын

    X تعود أصوله للغة العربية!! وهذا ليس بالغريب تماما فنحن من صنعنا العلم والمعرفة وليس من صنع الإرهاب والظلام...

  • @muadsaleh1061

    @muadsaleh1061

    4 жыл бұрын

    ومين قال اننا صنعنا الضلام والارهاب 😅

  • @Thisbook2022

    @Thisbook2022

    4 жыл бұрын

    @@muadsaleh1061 The rest of the world.

  • @hamza-trabelsi

    @hamza-trabelsi

    3 жыл бұрын

    لم نصنع العلم بل طورناه . كفاك مغالطات . تعلمو من الهند و من الإغريق . لاكنهم طوروها و زادوا عليها . و صدروها لأروبا

  • @mondolibero8136

    @mondolibero8136

    3 жыл бұрын

    @@hamza-trabelsi لا يا رجل لم يكن للهند واليونان علم كي نطوره .بل نحن من أنشأ العلم العرب جبابرة التاريخ

  • @hamza-trabelsi

    @hamza-trabelsi

    3 жыл бұрын

    @@mondolibero8136 روح اقرا التاريخ . بلى جبابرة بلى كلام فاضي . اصلا حتى العلماء المسلمين المعروفين لم يكونو عرب

  • @joebazooks
    @joebazooks12 жыл бұрын

    Very, very interesting.

  • @nicolehoang6013
    @nicolehoang601311 жыл бұрын

    the answer to the question is much more interesting than expected.

  • @shammaalali6889
    @shammaalali68892 жыл бұрын

    It’s so worth saying! 🤣😍

  • @daralaujam
    @daralaujam11 жыл бұрын

    Yes you are right, thank you so much. شيء =X

  • @bluegreen2077
    @bluegreen20774 жыл бұрын

    Thank you master to share that I love you

  • @almurabiton
    @almurabiton10 жыл бұрын

    Respect :)

  • @alimohammed7816
    @alimohammed78166 жыл бұрын

    شكرا تيرى مور على العلم النافع

  • @herzali
    @herzali8 жыл бұрын

    المسلمون في قمة ازدهارهم شاركو في مسيرة تطوير العلم. لكن لايجوز ان نقول ان العرب اساس العلم. لان العرب كذلك استفادو من انجازات من قبلهم من الليونان مثلا.

  • @myme8208

    @myme8208

    7 жыл бұрын

    Ali Alherz لكل عالم علم و ليس العلم للعالم فقط فهذا ما فعل "المسلمون" أخذوا العلم طوره ووضعوه للملئ

  • @jokr611

    @jokr611

    5 жыл бұрын

    واليونان اخذوا من السومريين العرب فالاصل في الحضارة انها اسلامية عربية ولله الحمد والمنه حمداً كثيراً طيباً نافعاً مباركاً فيه ملء السماوات وملء الارض وما بينهما وملء ما شئت من شي بعد

  • @user-um9kb5jm2o

    @user-um9kb5jm2o

    5 жыл бұрын

    @@jokr611 لكن السومريون ليسوا عرب او مسلمين ؟؟ ارجو افادتي ان كنت تعلم عن هذا الموضوع

  • @fatimafal866
    @fatimafal86611 жыл бұрын

    That is possible too I road some parts of that book , In eather ways , the main source of X as an unknown is "Shay" :) Thank for the new information

  • @Rabiedif
    @Rabiedif8 жыл бұрын

    الفضل للعلماء المسلمين في تقدم العلوم

  • @BigBoss-cc2mh

    @BigBoss-cc2mh

    6 жыл бұрын

    ناصر ابن حاتم ماتسواهم ولا تجي قريب من مقامهم

  • @reemr.a.m2498

    @reemr.a.m2498

    4 жыл бұрын

    Yousif Adnan الا مسلمين ولأنهم طبقوا دينهم وصلوا لما كانوا عليه الاسلام يأمر بالمعرفه والتعلم

  • @redouanehemi9693

    @redouanehemi9693

    4 жыл бұрын

    @@googleuser4203 great answer bro

  • @rayane--21pilots8

    @rayane--21pilots8

    4 жыл бұрын

    نعم

  • @leen8770

    @leen8770

    4 жыл бұрын

    @@googleuser4203 تعلم عن الإسلام أولا قبل أن تأتي و تتهمنا. لعلمك قبل الإسلام كانوا العرب عائشين وقتها في الجاهلية إن دين الإسلام هو من علّم و نصر الأمة.

  • @amulaaljohani6849
    @amulaaljohani684912 жыл бұрын

    I just love it =)

  • @MilVit
    @MilVit12 жыл бұрын

    Epic win!

  • @amiraboussaada4126
    @amiraboussaada412611 жыл бұрын

    so proud of my culture and ancestors !

  • @Kishgofu
    @Kishgofu12 жыл бұрын

    cheers for the synopsis.

  • @s4turn7k79
    @s4turn7k797 ай бұрын

    Im almost 28 and arabic is my mother language , i been to school since the age of 4 till 19 , language lesson were mandatory twice a day but i still know nothing about it ahahah man its more than an art

  • @DouSalama
    @DouSalama12 жыл бұрын

    Arab & Proud عربيّ أنا :)

  • @AlienSkaterO
    @AlienSkaterO12 жыл бұрын

    .... Okay . Awesome . Well done .

  • @hayatonorayato5453
    @hayatonorayato54537 жыл бұрын

    " ش ع غ ظ ض ق خ " our letter that the others can't say it's right I know 5 language but my language still the most beautiful one ... and I like the Italian too :3

  • @MrTStat

    @MrTStat

    7 жыл бұрын

    you missed all forms of ء

  • @hayatonorayato5453

    @hayatonorayato5453

    7 жыл бұрын

    firendable Oh sure how can I help you *^*

  • @hayatonorayato5453

    @hayatonorayato5453

    7 жыл бұрын

    firendable you can ask about any thing when ever you want

  • @ayhdiv84

    @ayhdiv84

    6 жыл бұрын

    How are they pronounced?

  • @soulpriestess1953

    @soulpriestess1953

    6 жыл бұрын

    namida no arashi dude no P sound either. Or Ch sound.

  • @ChristopherJManess
    @ChristopherJManess12 жыл бұрын

    Great tidbit.

  • @caitlinirelan5641
    @caitlinirelan564111 жыл бұрын

    We watched this in math today and I had to show my sister since she's takin Spanish. Haha

  • @TheMrNalsur
    @TheMrNalsur12 жыл бұрын

    Arabic is really logical when it comes to the grammar. But when it comes to the poems, one can easily make grammar mistakes for the poem to rhyme. There are also many exceptions in grammar, for some words don't look "nice" if they are written according to the grammar. Some logical and at the same time illogical stuff also exists. For example, Arabic has "the plural of the plural." I'm really glad that I learned it when I was only a kid.

  • @pourdamghani
    @pourdamghani11 жыл бұрын

    very very nice ...

  • @IzzyMeadow
    @IzzyMeadow12 жыл бұрын

    we CAN say SH in spanish: in Argentina we replace the Y or the LL for the sound of the Y. It is just in a region of the country

  • @resht_3lmart108
    @resht_3lmart1083 жыл бұрын

    The eloquence of difficult language produced equations