Riemann integral vs. Lebesgue integral

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The Bright Side of Mathematics

The Bright Side of Mathematics

Күн бұрын

English version here: • Riemann Integral vs. L...
Here, I explain the differences between the Riemann integral and the Lebesgue integral in a demonstrative way.
I hope that this helps students, pupils and others.
(This explanation fits to lectures for students in their first year of study: Mathematics for physicists, Mathematics for the natural science, Mathematics for engineers and so on)

Пікірлер: 60
@vector8310
@vector8310 6 жыл бұрын
This was so comprehensible that I was able to follow without knowing German.
@brightsideofmaths
@brightsideofmaths 6 жыл бұрын
Thank you :)
@dvashunz7880
@dvashunz7880 6 жыл бұрын
Same, and somewhat ironic that after watching a video in German I can now go back to the videos in English and think oh!, is that what they were trying to say!
@MsBkene
@MsBkene 6 жыл бұрын
haha ;)@@dvashunz7880
@sachkofretef
@sachkofretef 6 жыл бұрын
The single most clear explanation of WHY we need measure theory and Lebesgue integrals! Keep up the good work!
@brightsideofmaths
@brightsideofmaths 6 жыл бұрын
Thank you very much :)
@brightsideofmaths
@brightsideofmaths 5 жыл бұрын
By the way: Here the English version: kzbin.info/www/bejne/hnizi2OGZrV9nNk
@dasv3
@dasv3 6 жыл бұрын
ganz großes Kino. Richtig gut erklärt!
@brightsideofmaths
@brightsideofmaths 6 жыл бұрын
For every English speaking person that asked: I finally made the English version of this video: kzbin.info/www/bejne/hnizi2OGZrV9nNk
@ycm819
@ycm819 6 жыл бұрын
Muchas gracias por compartir esta excelente clase de matemáticas. El video está perfecto, muy bien hecho y claramente explicado. :) Eres un excelente profesor!!! Lo entendí todo. Gracias.
@interferenzbrille_2542
@interferenzbrille_2542 7 жыл бұрын
Rundum gutes Video. Ganz ruhig, angenehm und gut zu folgen.
@brightsideofmaths
@brightsideofmaths 7 жыл бұрын
Dankeschön. Ich bin auch zufrieden mit dem Ergebnis. Die 3 Daumen runter kamen auch alle aus den USA. Man kann natürlich enttäuscht sein, wenn man plötzlich auf einem deutschen Video landet. Der Titel gibt die Sprache dieses mal ja nicht her. :)
@adrianagomes1791
@adrianagomes1791 11 ай бұрын
I don't speak german, and this REALLY helped me understand Lebesgue Integrals, thank you!
@brightsideofmaths
@brightsideofmaths 11 ай бұрын
I have an English version of this video as well :)
@adrianagomes1791
@adrianagomes1791 11 ай бұрын
@@brightsideofmaths oh, that's even better! I will share the channel with my colleagues (we study applied Mathematics and are having a hard time understanting a few concepts you amazingly explain in this channel) 😀
@brightsideofmaths
@brightsideofmaths 11 ай бұрын
This is really nice! Thank you very much :)@@adrianagomes1791
@elifm.zeyveli6873
@elifm.zeyveli6873 6 жыл бұрын
thanks a lot! I've been working on my project for 3 days now and this video really cleared my mind
@brightsideofmaths
@brightsideofmaths 6 жыл бұрын
You are very welcome and thanks for the feedback. I am sorry that video is still in German.
@makivlon.bublik.dikarr9339
@makivlon.bublik.dikarr9339 7 жыл бұрын
danke :)
@brightsideofmaths
@brightsideofmaths 7 жыл бұрын
Gerne :)
@MHRAJAI
@MHRAJAI 5 жыл бұрын
Echt hilfreich. Dankeschön
@shuewingtam6210
@shuewingtam6210 2 жыл бұрын
You skip the step function and simple function in riemamn and lebesgue integral respectively. These leads to confusion on partition of x and f. Is that right?
@MsBkene
@MsBkene 6 жыл бұрын
Tolles Video. Super!! Danke
@NoBody-ut6qs
@NoBody-ut6qs 5 жыл бұрын
Hast du eigentlich noch das Video zum Satz von Lebesgue gemacht .... Suche es schon verzweifelt ... Thx für die bisherigen Videos
@brightsideofmaths
@brightsideofmaths 5 жыл бұрын
Hier findest du das Video :) kzbin.info/www/bejne/a6u3eWmQjZaoqKc
@shivanisingla1140
@shivanisingla1140 6 жыл бұрын
Ty this is very helpful🤗
@AnkitaThopate
@AnkitaThopate 7 жыл бұрын
Could you atleast put English subtitles ?
@brightsideofmaths
@brightsideofmaths 7 жыл бұрын
I will create an English version now :)
@macmos1
@macmos1 6 жыл бұрын
Did you make it ?
@brightsideofmaths
@brightsideofmaths 6 жыл бұрын
At least, the first part has English subtitles now.
@Iamfafafel
@Iamfafafel 6 жыл бұрын
thank you so much! i'm taking a measure theory course right now and the video was extremely helpful with english subs.
@brightsideofmaths
@brightsideofmaths 6 жыл бұрын
You are welcome :)
@Rorkazak
@Rorkazak 6 жыл бұрын
Why is this in German ? We all know Riemann was born and raised in the Bronx.
@brightsideofmaths
@brightsideofmaths 6 жыл бұрын
Too funny ;)
@habernadine4968
@habernadine4968 7 жыл бұрын
Danke, das ist echt cool gemacht! Ich studiere auch Mathematik auf Lehramt und das Lebesgue-Integral bereitet so einigen erhebliche Probleme ... echt toll. Gibt es in Zukunft evtl. weitere Videos zur Lebesgue- und Maßtheorie? :-)
@brightsideofmaths
@brightsideofmaths 7 жыл бұрын
Dankeschön. Ich habe tatsächlich vor, noch weitere Videos über Integrationstheorie zu machen. Leider wird dies aber noch etwas Zeit brauchen :)
@PhysicsGaunt
@PhysicsGaunt 4 жыл бұрын
Wäre es mögilch, wenn du über die wichtigsten Begriffe der Rechnung mit dem Lebesgueintegral ein Video machst? Also Messbarkeit, äußeres Maß, messbare Räume und wichtige Sätze bzws. Korrolare?
@brightsideofmaths
@brightsideofmaths 4 жыл бұрын
Ich habe eine ganze Reihe über Maßtheorie: kzbin.info/www/bejne/anWrgWuZd8ialdE Weitere Themen werden dort folgen.
@PhysicsGaunt
@PhysicsGaunt 4 жыл бұрын
@@brightsideofmaths Das ist ja super! Fehlt ja ber noch der Satz der dominierte Konvergenz, oder?
@brightsideofmaths
@brightsideofmaths 4 жыл бұрын
@@PhysicsGaunt "Dominierende" Konvergenz gibt es nicht, aber die dominierte Konvergenz: kzbin.info/www/bejne/a6u3eWmQjZaoqKc
@PhysicsGaunt
@PhysicsGaunt 4 жыл бұрын
@@brightsideofmaths Cool, super videos :)
@TheWitness1001
@TheWitness1001 6 жыл бұрын
Just to confirm, in 12:33 the blue sets are given by the preimage of the Ci, right?
@brightsideofmaths
@brightsideofmaths 6 жыл бұрын
Almost. The blue sets are given by the preimage of [c_{i-1}, c_i] as indicated by the dotted lines.
@TheWitness1001
@TheWitness1001 6 жыл бұрын
thx
@howmathematicianscreatemat9226
@howmathematicianscreatemat9226 6 жыл бұрын
Hey, super Video, du hilfst vielen Studenten sehr, auch meine Leute haben hier schon berichtet, dass sie es gefühlte 100mal schneller als in der Vorlesung verstehen konnten, denn der Professor hofft insgeheim, dass es nicht verstanden wird, auch wenn er das nie zugeben würde (oder es mangelt an Empathie,dass nicht jeder seine Aufnahmegeschwindigkeit hat) Ich möchte auch so etwas machen wie du, nur bin ich nicht so der EDV Mensch. Welche Software verwendest du hier und wo kann man die bekommen? Wenn du mir die Frage beantwortetest, schließ ich mich mit dir zusammen sobald ich erfolgreich bin. :)
@richardjustr11111
@richardjustr11111 9 ай бұрын
I dont even speak german Its 3am Why am watching this
@brightsideofmaths
@brightsideofmaths 9 ай бұрын
Haha, there is an English version of this video that also works during the night ;)
@richardjustr11111
@richardjustr11111 9 ай бұрын
@@brightsideofmaths *i know*
@raheelriaz786
@raheelriaz786 7 жыл бұрын
English please
@lobijuni
@lobijuni 2 жыл бұрын
Wenn man beispielsweise in Kugelkoordinaten dreifach integriert, kann man Lebesgue nicht anwenden.
@brightsideofmaths
@brightsideofmaths 2 жыл бұрын
Das meinst du als Scherz, oder?
@agrajyadav2951
@agrajyadav2951 Жыл бұрын
bruh german video english title BRUH
@brightsideofmaths
@brightsideofmaths Жыл бұрын
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