Conformal Mapping | Möbius Transformation | Complex Analysis #25

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  • Опубликовано: 20 сен 2024

Комментарии • 232

  • @TheMathCoach
    @TheMathCoach  5 лет назад +37

    Long-time no see, thank you all for the supportive messages during my hiatus (I completed my master thesis and have worked one year at my first job)! This video is dedicated to all of you, but also specific @Sarah _ that have waited an awful amount of time for me to complete this one.
    Conformal mapping is one of the hardest concepts to grasp in complex analysis and I also struggled with it a fair bit in school but I think this video will be able to show you that it is easier than one thought!

    • @lordmongo511
      @lordmongo511 4 года назад

      wow, congratz! you deserve it!

    • @spyarchnemesis3871
      @spyarchnemesis3871 4 года назад

      What software are you using to create these helpful videos?

    • @TheMathCoach
      @TheMathCoach  4 года назад +8

      Camtasia for editing and recording my screen while I write on a canvas I made in photoshop. I'm using a Wacom tablet and then I record my audio with a Blue Yeti and edit it in Audacity :)

    • @timgoppelsroeder121
      @timgoppelsroeder121 4 года назад

      If i map a half plane to a quadrant what transformation would i use

    • @sangaviram6563
      @sangaviram6563 3 года назад

      Mind blowing........ thank you from my bottom of my heart friend

  • @gulnazshalgumbayeva8655
    @gulnazshalgumbayeva8655 2 года назад

    Found it!!! God bless you forever!

  • @infinity_1223
    @infinity_1223 6 месяцев назад

    Best of bests video on You Tube🎉🎉🎉🎉

  • @Senya7893
    @Senya7893 2 года назад

    You are my savior, young man!

    • @TheMathCoach
      @TheMathCoach  2 года назад

      this young man was happy to help out!

  • @ananyabhandari9613
    @ananyabhandari9613 5 месяцев назад

    thank you so much for making this video it is very helpful to me ....

    • @TheMathCoach
      @TheMathCoach  2 месяца назад

      Glad it was helpful! This is one of my favorite videos, so really happy that it can be useful to people!

  • @sergeydukman5832
    @sergeydukman5832 Месяц назад

    I just subscribed.
    Golden channel

  • @deltaacademyofmathematics8471
    @deltaacademyofmathematics8471 6 месяцев назад

    excellent explanation sir

    • @TheMathCoach
      @TheMathCoach  6 месяцев назад

      Thank you and Happy to help out!

  • @williammartin4416
    @williammartin4416 8 месяцев назад

    Well done, very helpful

  • @omargaber3122
    @omargaber3122 Год назад

    You are wonderful teacher, you are amazing , thank you from deep heart 🤍

    • @TheMathCoach
      @TheMathCoach  8 месяцев назад +1

      Happy to be able to help and glad that you found my video helpful :) you make a teacher happy over here!

  • @PEACEBANJO
    @PEACEBANJO Год назад

    Thank you so very much. It was helpful

  • @amrrelsheikh
    @amrrelsheikh Год назад

    Thank you very very much!! Great video

    • @TheMathCoach
      @TheMathCoach  7 месяцев назад +1

      Glad you liked it and thank you for the kind words!

  • @magicofengineering6508
    @magicofengineering6508 2 года назад

    It was very helpful, Thanks a lot😉

  • @ChoCho-yi2sw
    @ChoCho-yi2sw 2 года назад +1

    Thanks 👍

  • @bowenyeh8684
    @bowenyeh8684 Год назад

    Amazing video.

  • @arthsojitra53
    @arthsojitra53 4 года назад +2

    Beautifull Explanation.

    • @TheMathCoach
      @TheMathCoach  3 года назад +1

      Thank you, I think it worked out really great for this topic!

    • @arthsojitra53
      @arthsojitra53 3 года назад +1

      @@TheMathCoach It sure did.

  • @danielvanbelgie5807
    @danielvanbelgie5807 2 года назад

    excellent thanks a lot!!!

  • @quanle1539
    @quanle1539 2 месяца назад

    Dear TheMathCoach,
    I hope this message finds you well. I am writing to express my heartfelt gratitude for the enlightening lecture you delivered on [specific topic or date]. Your ability to convey complex concepts with clarity and enthusiasm is truly remarkable and has greatly enhanced my understanding of the subject.
    The depth of knowledge you shared, along with your engaging teaching style, has left a lasting impression on me. I particularly appreciated the practical examples and real-world applications you included, which made the material much more relatable and easier to grasp.
    Thank you once again for your dedication and effort in providing such a valuable learning experience. I look forward to attending more of your lectures in the future.
    Warm regards

    • @TheMathCoach
      @TheMathCoach  2 месяца назад

      Have the bots started leaving comments on my videos now! I have reached a new audience (sorry if you are a human, I noticed [Insert Text here bracket])

  • @Setsugekwa
    @Setsugekwa 3 года назад +12

    Seriously, you just saved my day. I had a hard time while understanding fluid flow on object with conformal mapping, and this video grasped concept for me. thx a lot.

    • @TheMathCoach
      @TheMathCoach  3 года назад +1

      Happy to hear that DeepDark, now you will able to continue to master your fluid flows while having a great day!
      Best of luck with your studies mate.

  • @adrielalberto6591
    @adrielalberto6591 3 года назад

    amazing video!

    • @TheMathCoach
      @TheMathCoach  3 года назад

      Glad you think so Adriel, this is one of my best work so far if I can say so myself :)

  • @minhnam3827
    @minhnam3827 6 месяцев назад

    The video is really great. The teacher didn't teach us, she let us read the textbook and the written textbook was very difficult to understand, but after watching your video, I understood the problem! Thank you so muchh

  • @manishkanojia2636
    @manishkanojia2636 3 года назад

    Really nice

  • @TruthWillSF
    @TruthWillSF 3 года назад

    Any one can solve problems,but only genius can reveal the concept 👍🏻👍🏻👍🏻👍🏻❤️

    • @TheMathCoach
      @TheMathCoach  3 года назад +1

      Happy I could help! This is such a great area and I hope my explaination could help others understand it more easily! Happy Holidays!

  • @sandracordoba6090
    @sandracordoba6090 Год назад

    I can’t express how grateful I am. Great video

  • @augustoriedinger5075
    @augustoriedinger5075 4 года назад +5

    You are a wonderful human being. Thank you.

  • @蔡沂倫-e8h
    @蔡沂倫-e8h 2 года назад +1

    i spent over 5 hours not knowing my professor's explanation, but after your awesome video, im totally speechless. thank you so much!!!!

    • @TheMathCoach
      @TheMathCoach  2 года назад

      happy to be able to help out! sometimes you just need it explained in some other way for everything to click! :)

  • @randomideas5475
    @randomideas5475 4 года назад +1

    I just came here to understand definition of conformal mapping but couldn't stop myself to grasp the whole concept..credit goes to you. Keeping helping us man

    • @TheMathCoach
      @TheMathCoach  4 года назад

      I'm just happy to help and that you shared your progress with me :)

  • @gungorgunduz-odtu9532
    @gungorgunduz-odtu9532 2 года назад

    Just excellent!

    • @TheMathCoach
      @TheMathCoach  2 года назад

      Glad that you found it useful Gungör!

  • @arielfuxman8868
    @arielfuxman8868 2 года назад

    Awesome vid

  • @GUANWENZHOU
    @GUANWENZHOU 6 месяцев назад

    Thanks so much for saving my time and you've literally made my day!!!

  • @jackjonathan5504
    @jackjonathan5504 4 года назад +1

    well i dont even know how to thank you.you just explained to me what no one else could.i am really greatful for your dedication

    • @TheMathCoach
      @TheMathCoach  4 года назад

      I'm just happy to help! Good luck with the rest of your studies :)

  • @AnilKumar-rp2vs
    @AnilKumar-rp2vs Год назад

    Excellent presentation. You are a great teacher. Thank you.

    • @TheMathCoach
      @TheMathCoach  Год назад

      Glad that it could be useful to you Anil and thank you for the kind words :)

  • @Aixur
    @Aixur 3 года назад

    I watched so many of your videos and you saved my life so thank you. i still might not pass tomorrow but the odds for success are so much greater now.

    • @TheMathCoach
      @TheMathCoach  3 года назад

      Happy to hear that, I hope your exam went well! :)

  • @tree5335
    @tree5335 Год назад

    you are a savior, lots of love and respect!!

    • @TheMathCoach
      @TheMathCoach  7 месяцев назад

      Thank you for all the love and respect!

  • @PunmasterSTP
    @PunmasterSTP 3 года назад +7

    Another truly incredible masterpiece! Sadly I have reached the end of the playlist, but I will eagerly look forward to any and all new content in the future. Thank you again, so so much!

    • @TheMathCoach
      @TheMathCoach  3 года назад +1

      Thanks for the watch, glad my content could be useful to you. It will come more with time :)

    • @PunmasterSTP
      @PunmasterSTP 3 года назад

      @@TheMathCoach You are most welcome, and I found your content *very* useful! I've got notifications turned on so I'll be ready. In the meantime, I'm exploring more math on RUclips, including integration techniques and differential equations on Mathematics MI ( ruclips.net/channel/UCZDkxpcvd-T1uR65Feuj5Ygplaylists ), along with Numberphile, Flammable Maths and Socratica.

  • @sabaghasemi3748
    @sabaghasemi3748 3 года назад

    great dude

  • @andreaLA222
    @andreaLA222 3 года назад

    In class we were just given definitions and formulas, not a single drawing, and I didn’t get what Möbius Transformations were. Now I understand everything. Thank you so much!!

    • @TheMathCoach
      @TheMathCoach  3 года назад

      The drawings are kind of necessary in my opinion! Happy to help mate :)

  • @PAWANSINGH-PSR
    @PAWANSINGH-PSR 3 года назад

    Sir please upload more vedios on COMPLEX ANALYSIS

    • @TheMathCoach
      @TheMathCoach  3 года назад

      I'm on it, next video about Deformation of Contours should be up in the next couple of days!

  • @stimulantdaimamld2099
    @stimulantdaimamld2099 4 года назад +1

    simply a thrill.words will fall short of the description.

  • @ketyaportela623
    @ketyaportela623 2 года назад

    One of the first times I directly subscribed to a RUclips channel. Quality video, thank you for the additional resources such as the course map, the different methods and the links to go further. Very good compromise between rigor and simplicity.

    • @TheMathCoach
      @TheMathCoach  2 года назад +1

      Hi ketya, I'm happy to hear that my content can be useful to more people! Welcome to my channel and just let me know in the comments if you have any questions :) I'm also glad that you find my level of explanation appropiate to this kind of educational videos, always a tricky road to go between 30+ mins of proving all the statements in the video and somewhat of a more general approach and just going over the key aspects, short and concised.

  • @divyanshpandit6509
    @divyanshpandit6509 3 года назад

    that was simply OUTSTANDING!

    • @TheMathCoach
      @TheMathCoach  3 года назад

      THANK YOU!

    • @temirobert6505
      @temirobert6505 3 года назад

      ruclips.net/video/QMi0wYFrse4/видео.html geometric approach of conformal mapping

  • @AA-xb4mx
    @AA-xb4mx 3 года назад

    I love how well you explain everything, even when it may seem obvious.
    In my prof's lecture, he just said that a conformal mapping is a function that preserves "the angle" and pointed to two intersecting curves on his slides. But then I thought "how do you even get an angle between curves????" And then he proceeded to show more complicated mappings with circles and I just zoned out. Thanks for clarifying that it's the angle between the tangents at the point lol

    • @TheMathCoach
      @TheMathCoach  3 года назад

      Happy to help and yes, it is really not so obvious xD

  • @timothyang2066
    @timothyang2066 4 года назад +6

    So elegantly explained. Thank you for the effort and I hope you can find the time to continue making content. Perhaps a series on undergrad abstract algebra.

    • @TheMathCoach
      @TheMathCoach  4 года назад

      Thank you for the kinds words. I also hope that :)

  • @luanmartins8068
    @luanmartins8068 4 года назад +2

    congrats for the amazing video. I'm a physics student and it helps me a lot.

    • @TheMathCoach
      @TheMathCoach  4 года назад

      Happy to hear that! Good luck with your studies :)

    • @den_rmdani
      @den_rmdani 4 года назад

      For Mathematical Physics ?

    • @luanmartins8068
      @luanmartins8068 4 года назад

      @@den_rmdani yes!

  • @ashishkumarsarma5359
    @ashishkumarsarma5359 3 года назад

    Thank you very much sir 🙏 I am currently an engineering first year student and u r video helped me a lot today! Greetings from India 🇮🇳

    • @TheMathCoach
      @TheMathCoach  3 года назад

      Happy to hear that my content was useful to you! best regards from sweden :)

  • @mrunmayeemhatre7185
    @mrunmayeemhatre7185 2 года назад

    Thank you so much for explaning the concept so nicely!

  • @aniltiwari2989
    @aniltiwari2989 2 года назад

    Sir am from India

  • @albertnoub371
    @albertnoub371 4 года назад +1

    thanks very much brother. your video is very productive

    • @TheMathCoach
      @TheMathCoach  4 года назад

      I'm happy you found my video useful :)

  • @googleummy47
    @googleummy47 3 года назад

    You are amazing teacher!!!

  • @mikeperri7246
    @mikeperri7246 4 года назад

    Thank you so much for the video lesson and examples. Very well presented and simply explained.

    • @TheMathCoach
      @TheMathCoach  4 года назад

      Thank you for the kind words, happy it could be useful to you!

  • @mariaazam3467
    @mariaazam3467 5 лет назад +1

    I was trying hard to grasp the idea of conformal maps... You helped me alot... Thanks 🙂

  • @tommylofgren8844
    @tommylofgren8844 3 года назад

    Thank you very much! This video was great 😀

    • @TheMathCoach
      @TheMathCoach  3 года назад +1

      Happy to hear that, this one is one of my proudest work :)

  • @den_rmdani
    @den_rmdani 4 года назад +1

    Thanks you, this video help me.

  • @jashanpreetkaur316
    @jashanpreetkaur316 4 года назад

    Thank u so much sir
    Amazing explanation

  • @marvaajab6657
    @marvaajab6657 Месяц назад

    i have one question can the distribution of this transformation is normal?

  • @vasav5980
    @vasav5980 4 года назад +1

    Thanks for all you did!

  • @beepbeep1836
    @beepbeep1836 3 года назад

    This is so helpful, thank you!

  • @halik919
    @halik919 2 года назад

    Thank you so much for the amazing video. I have a question. We said that a circle that passes through the origin is mapped to a line, why that didn't happen in 12:53

    • @TheMathCoach
      @TheMathCoach  2 года назад

      Hello, I think my explaination in the video needs one additional mark. It is not that the circle passes through the origin that is the important part, it is that we use a mappning that makes us *divide with zero* at at least one point, which happended at 07:57 with the inversion mapping (1/z) if and only if the line or circle passes through the origin (z = 0 -> 1/0). Hope it clarifies!

  • @anlgunes783
    @anlgunes783 4 года назад

    Very very good work, thanks for it man!

  • @Astronautakaty
    @Astronautakaty 4 года назад +1

    thank you so much, what an amazing video!! really helpful !!!

    • @TheMathCoach
      @TheMathCoach  4 года назад +1

      I'm just glad it could be useful for someone :)

  • @halitorhan3913
    @halitorhan3913 3 года назад

    What is image of unit disk under f(z)=z/(1-z^2) ile ilgili aramalar

    • @TheMathCoach
      @TheMathCoach  3 года назад

      what have you tried so far? and keep it in English if you want me to understand it.

  • @googleummy47
    @googleummy47 3 года назад

    Sir, could you make videos for real analysis as well?🙏

    • @TheMathCoach
      @TheMathCoach  3 года назад +2

      Not sure, since I think that area is quite well covered at the moment. I think I need to target more niche areas of mathematics for people to find my videos :)

  • @andresgomez6575
    @andresgomez6575 4 года назад

    Amazing content, thanks for uploading.

  • @googleummy47
    @googleummy47 3 года назад

    Keep on making videos on complex analysis!

    • @TheMathCoach
      @TheMathCoach  3 года назад +1

      That's the plan!

    • @googleummy47
      @googleummy47 3 года назад

      @@TheMathCoach Eagerly waiting for transformation videos ❤️

  • @samikshamahajan217
    @samikshamahajan217 3 года назад

    Thank you so much!!!
    That was awesome

    • @TheMathCoach
      @TheMathCoach  3 года назад

      Happy to help and it was kind of fun to make it, so glad to hear that it got rating awesome :)

  • @KarlLew001
    @KarlLew001 2 года назад

    Interesting! I had not realized that the derivative was affected by the (ad-bc) condition. I thought it was just the determinant not being zero. Thanks!

  • @KAREN-ye5pf
    @KAREN-ye5pf 3 года назад

    It was clear sir 🙂

    • @TheMathCoach
      @TheMathCoach  3 года назад

      I'm happy that you found it useful!

  • @EmirDanisman-r9f
    @EmirDanisman-r9f 10 месяцев назад

    Hello, first of all thank you so much for this great video. I want to ask you that when you change the elementary transformation order the final Möbius transformation result also changes. How will we understand which one is true?

    • @TheMathCoach
      @TheMathCoach  7 месяцев назад

      Hello, if the transformations still make your mapping end up in the same desired spot then it is also a valid Möbius Transformation. Often the question will ask you for "a" möbius transformation and not "the" möbius transformation since there often exist more then one.

  • @fadeelibraheem8892
    @fadeelibraheem8892 4 года назад

    thank you so much, so helpful !

  • @sysy5124
    @sysy5124 3 года назад

    Thank you ❤

  • @asitisj
    @asitisj 3 года назад

    Theorem link is broken

    • @TheMathCoach
      @TheMathCoach  3 года назад

      Thanks for the notice, the page had been removed by the publisher. I have updated with another link in the description :)

  • @navadimo-vas
    @navadimo-vas Год назад

    Very helpful. I am a physicist and need conformal mapping for solving Laplace equations for electric field. This vieo clarifies a lot for me :) I would like to present material in such clarity myself. I like neet writing and higlighting/shadowing part of formulas. Where did you learn to write like this, and how do you excecute this?

    • @TheMathCoach
      @TheMathCoach  Год назад +1

      Glad it helped! I have an video on my channel where I show "how I make my videos", but the short version is photoshop and a lot of patience!

  • @rachelrypkema237
    @rachelrypkema237 Год назад

    Thank you for all your videos!! Could you do one on the Dirichlet problem?

    • @TheMathCoach
      @TheMathCoach  7 месяцев назад

      nothing planned right now, maybe in the future!

  • @ryanmckenna2047
    @ryanmckenna2047 2 года назад

    Your videos are incredible, thank you. I was reading a dusty old tome on this and it was killing me :(

    • @TheMathCoach
      @TheMathCoach  2 года назад +1

      most of the texts are dusty indeed, I had to visit the old archives myself when I created this video! But happy to help out mate!

  • @kushalv8268
    @kushalv8268 5 лет назад +1

    Thank you sir

  • @virajdanieldsouza1720
    @virajdanieldsouza1720 4 года назад

    Great work! Well done

  • @frankerz
    @frankerz 5 лет назад +5

    It looks really good! What software do you use to make these videos?

    • @TheMathCoach
      @TheMathCoach  5 лет назад +5

      Hello. Adobe Photoshop for the writing (and a lot of patience) while I record my screen with Camtasia, which is also my editing program. The audio is later recorded over the video by using Audacity and then I match the video and audio files with Camtasia :)
      Just let me know if you are interested in knowing about my settings in either program. I'm making a video right now about "how I make educational videos" which will walk you through all these things in detail and that one should be out within one month!

    • @Jhev1000
      @Jhev1000 5 лет назад +1

      @@TheMathCoach That's good stuff. If you have the time or inclination, I'd watch a tutorial video of your editing process. I have all the programs mentioned and I'd like to up my video editing skills and perhaps make videos similar to this in the future. Great content. I subscribed and will be watching your complex analysis series. It's been forever and I should brush up.

    • @TheMathCoach
      @TheMathCoach  5 лет назад +3

      Happy to hear that and I will get back to work on my tutorial then :)

  • @timgoppelsroeder121
    @timgoppelsroeder121 4 года назад

    Thank you soooooooooo much!!!!! Why do i have to waste 1-2h before understanding the topic with just 1 video ...

    • @TheMathCoach
      @TheMathCoach  3 года назад

      That is the point with my videos, short and straight to the point with examples.

  • @harshharsh9828
    @harshharsh9828 4 года назад

    very helpful

  • @missoss
    @missoss 2 года назад

    2z - 2 + 3i

    • @TheMathCoach
      @TheMathCoach  2 года назад

      Hello missoss, thank you for the answer! Great job! But does that not miss the circle? If we input the point z = 0 we get w(0) = 2*0-2+3i = -2+3i, but this point is not on the last circle.

    • @missoss
      @missoss 2 года назад

      @@TheMathCoach Sorry

    • @TheMathCoach
      @TheMathCoach  2 года назад

      @@missoss i'm really happy that you tried to solve it and got back to me :)

  • @talkravarusic8489
    @talkravarusic8489 3 года назад +1

    This is amazing!
    Is there a possibility to share some more complicated examples with exponents and inversions?

    • @TheMathCoach
      @TheMathCoach  3 года назад +2

      Happy to hear that! Maybe in the future, focusing right now on my little book about complex analysis and to finish this playlist, which is not so far away.

  • @MicroageHD
    @MicroageHD 3 года назад

    Please come back, i love your videos.

    • @TheMathCoach
      @TheMathCoach  3 года назад +1

      I'm still here - lurking in the comments, just slow at making videos :)

    • @MicroageHD
      @MicroageHD 3 года назад

      @@TheMathCoach Okay, take your time :)

  • @yibingzhang5464
    @yibingzhang5464 3 года назад

    masterpiece really! Could you please make another video about Exponential mapping? Thank you so much

    • @TheMathCoach
      @TheMathCoach  3 года назад

      Happy to hear that you liked it, maybe in the future. Not heard of it before.

  • @raazkamal4714
    @raazkamal4714 4 года назад

    Best Explanation

  • @divyanshunarang4280
    @divyanshunarang4280 4 года назад

    THANKS SIR

  • @jerinfatima4999
    @jerinfatima4999 4 года назад

    Tq so much

  • @feynstein1004
    @feynstein1004 2 года назад +2

    Excellent video. However, I'm interested in how a finite area (circle) got mapped to an infinite area. Doesn't that break some rules? Also, is the reverse also possible? i.e. mapping an infinite area to a finite one? What does that actually mean? 🤔

    • @ivank4766
      @ivank4766 2 года назад

      Who said Circle is a finite area? 😏
      Welcome to set theory where both areas are actually infinite

    • @feynstein1004
      @feynstein1004 2 года назад

      @@ivank4766 In the quiet words of the Virgin Mary, come again?

    • @TheMathCoach
      @TheMathCoach  2 года назад

      Glad you found it useful!
      The summary is that astonishing things happens when you divide by zero. In this case, some points on the circle created division with zero and therefore these gets mapped to infinity, which means that the length of the line must be infinite in length (since we have to reach some point at infinity), hence the area must follow the same principle to connect all the points in the mapping. Then again you could say that the circle is not finite in area to start with in the same way that there are infinite many numbers between two numbers on the real number line.

    • @feynstein1004
      @feynstein1004 2 года назад

      @@TheMathCoach This is beyond me 😅

  • @Rodolfoalvescarvalho
    @Rodolfoalvescarvalho 3 года назад +3

    Hi! What a wonderful job, a masterpiece!!!! Would you describe what software and hardware do you use for handwriting? Thank you!

    • @TheMathCoach
      @TheMathCoach  3 года назад +2

      Hello, happy you found it useful! I made a video where I explain everything in detail: ruclips.net/video/5PGj1Sh4Lk0/видео.html I hope it helps and let me know if you have any follow upp questions. Happy Holidays :)

  • @shaohongyu7721
    @shaohongyu7721 3 года назад +1

    17:05 Here you mentioned that f(1) = infinity, I think its because its 1/(1-1) = 1/0, but isn't 1/0 undefined?

    • @TheMathCoach
      @TheMathCoach  2 года назад

      you are right and it is a quick simplification on my part, it should ofc be that "f(z) goes to infinity when z goes to 1". But in short the function will have infinity big values when we approach z=1.

  • @sSereth
    @sSereth 4 года назад

    thanks, love u

  • @shibsankardasgupta6127
    @shibsankardasgupta6127 4 года назад +1

    @TheMathCoach, I have a question. What Mobius transform maps the whole interior of a rectangle to another rectangle? Will it always be an affine transform?
    Thank you so much for this excellent video.

    • @TheMathCoach
      @TheMathCoach  4 года назад +1

      Happy that you found this video helpful, but I don't know enough regarding your question to answer it.

  • @brenmclean
    @brenmclean 4 года назад

    This reminds me of geometry transformations taught to Y8 students. ie. rotation, reflection, translation

    • @TheMathCoach
      @TheMathCoach  4 года назад +2

      That is great to hear since this area is just a way to use those elementary transformations. It is pretty beautiful how everything comes together.

  • @bandeass1
    @bandeass1 3 года назад

    Hello! Thankyou so mush for sharing these videos. It is a superb complement for the lectures given on my university. I have a question at (16:33) and forward when you transform the circle to a line. I don't get it when you insert the points in your given f1(z) = 1/z+1 to get the four new points. I did a similar problem in my course where i transform a domain D1(0,2)\D2(1,1)onto the horizontalstrip{w∈C: 3

    • @TheMathCoach
      @TheMathCoach  3 года назад +1

      Hello, happy to hear that my content can be useful for you!
      I used the function *f(z) = 1/(z-1)* and I used that one since I needed to divide by zero to get a line. I think you are probably going to be able to create the same result from your example since each radius is going to be mapped to its own line. For example in the video, you could see that z-values with radius 1 are mapped to the line and then all the other points are mapped to the left, you will probably be able to achieve kind of the same result. The first transformation of the big circle D1 will give you all the points to the left of some line AND then you will have to subtract the points that makes up the smaller circle D1 so you will end up with a *band*. After that I guess you have to rotate it and translate it to match the final image.
      Best of luck!

  • @maomi3176
    @maomi3176 Год назад

    This is not a complete course for conformal mapping btw

    • @TheMathCoach
      @TheMathCoach  Год назад

      Hello, what more would you like to have covered in a complex analyis course? that is the main subject for this playlist.

    • @maomi3176
      @maomi3176 Год назад

      @@TheMathCoach Complex Analysis and Potential Theory is absent.

  • @asitisj
    @asitisj 3 года назад +1

    8:26 I tell myself, okay may be since the line goes to infinity. 8:27 it's confirmed. Looks like I still got some math cells active.

    • @TheMathCoach
      @TheMathCoach  3 года назад +1

      haha, that is one of the best feelings ever mate! You seems to still got it!

  • @maluram5272
    @maluram5272 4 года назад

    Thnk uu sir

  • @sukursukur3617
    @sukursukur3617 3 года назад

    Hi,
    Can we express difference of two figures numerically by using conformal mapping?
    For example: how are a circle and an ellipse far each other numerically? Or a circle and triangle, or square...
    A circle resembles a circle %100.
    Can you lead me?

    • @TheMathCoach
      @TheMathCoach  3 года назад

      Hello, not sure about that sorry. Conformal mappings is a property for a function and is not used to compare properties between two functions.

  • @pramitghosh9365
    @pramitghosh9365 4 года назад

    Ω={z=x+iy∈C:y

    • @TheMathCoach
      @TheMathCoach  4 года назад

      Hi, there probably exist an conformal map. Regarding the second thing, the key thing to get a circle to map to a line is that the image needs to contain infinity and that was succeded in the video at the origin since we had the function 1/z so the origin is not the condition for all examples only for this one.

  • @nicolasdellano280
    @nicolasdellano280 4 года назад

    Hey, very good video, just by curiosity, what software do you use to make the videos?

    • @TheMathCoach
      @TheMathCoach  4 года назад +2

      Hello!
      I use Adobe Photoshop for the writing (and a lot of patience) while I record my screen with Camtasia, which is also my editing program. The audio is later recorded over the video by using Audacity and then I match the video and audio files with Camtasia :)

    • @nicolasdellano280
      @nicolasdellano280 4 года назад

      @@TheMathCoach thank you very much, the "a lot of patience part" must be the most important one lol. Actually I thought you would use some unknown crazy good program, but actually the tools are normal ones, guess I'll grab my patience and try to do something like this as well.

    • @TheMathCoach
      @TheMathCoach  4 года назад +1

      @@nicolasdellano280 haha yea, I probably have around 10-20 hours of me writing on the canvas and end up using only around 1-2 hours since most of it is mistakes before you get just the right one!
      Best of luck to you!

  • @SimchaWaldman
    @SimchaWaldman 4 года назад +1

    Why are we not funding this??? ❤️💚💙

  • @ositajohncross1733
    @ositajohncross1733 3 года назад

    The second method is a kinda confusing though, but I prefer and understood the first one

    • @TheMathCoach
      @TheMathCoach  3 года назад

      haha yea, the second option can be a bit tedious and more of a just plugging everything into a formula and solving. The first one gives a bit more visual aid :) But that is the beauty some like the first and some like the second one :)