Thomae Function

  Рет қаралды 15,169

Douglas Harder

Douglas Harder

Күн бұрын

Пікірлер
@redjr242
@redjr242 8 жыл бұрын
Thanks for such an interesting video and a clear, step-by-step tour of the Thomae Function!
@learningstatistics1290
@learningstatistics1290 3 жыл бұрын
25:31 I think delta should have 8 terms in your example, since N=4
@AND0123100
@AND0123100 10 жыл бұрын
I didn't understand why, n>N, could you give an explanation?
@learningstatistics1290
@learningstatistics1290 3 жыл бұрын
Me neither. Does anyone can help me?
@Anuragmishra208
@Anuragmishra208 11 ай бұрын
May be he used archmedian property
@AND0123100
@AND0123100 10 жыл бұрын
Thanks I was looking about the Thomae's function so long ago..
@guuspalmero
@guuspalmero 6 жыл бұрын
21:37 You meant to say that we've proven that the function is discontinuous at any ))rational(( number. Thanks for the video!
@MariaSalazar-ob3sl
@MariaSalazar-ob3sl 3 жыл бұрын
Love it . Very detailed information
@vafkamat
@vafkamat 8 жыл бұрын
great video; very well done
@lateefahmadwanilaw8948
@lateefahmadwanilaw8948 Жыл бұрын
Excellent
@robertshopov4088
@robertshopov4088 4 жыл бұрын
I am confused as to how u got working out in 24:30
@ElizaberthUndEugen
@ElizaberthUndEugen 8 жыл бұрын
why does the delta example set start with 2's as the denominator and not 1's?
@learningstatistics1290
@learningstatistics1290 3 жыл бұрын
I agree. 25:31 I think delta should have 8 terms in your example, since N=4
@breisfm
@breisfm 5 жыл бұрын
Amazing video! Thanks!
@KumarSaurabh7722
@KumarSaurabh7722 4 жыл бұрын
Will you refer a text book in which continuity of popcorn function discussed in step by step manner ? Please.
@DouglasHarder
@DouglasHarder 4 жыл бұрын
I've never seen the function described in a textbook. Prof. Holbrook described the function in my first-year calculus course over 29 years ago. It's a standard delta-epsilon proof with a judicious choice of delta.
@KumarSaurabh7722
@KumarSaurabh7722 4 жыл бұрын
Ok , but would you refer at least one textbookof basic real analysis ?
@chrislee5044
@chrislee5044 3 жыл бұрын
@@KumarSaurabh7722 Spivak
@KumarSaurabh7722
@KumarSaurabh7722 4 жыл бұрын
How are you saying that 'a ' is less than 'n/N' and 'n/N ' is less than b as you are assuming the existence of intervals (a , n/N) and (n/N , b) ?
@anxiousaspirant23
@anxiousaspirant23 4 жыл бұрын
Inverse image can't be like z and bcaz if we take inverse again it can't be a function ,to take inverse function should one one and onto Am i thinking in right way?!
@DouglasHarder
@DouglasHarder 12 жыл бұрын
What is wrong with the argument?
@maurocruz1824
@maurocruz1824 6 жыл бұрын
In 23:31 you would use 'i' or 'j' instead of 'n' (because n has a different meaning in the next slide!). In the first slide is N. Clearly, a nonsense. Apart from that, it was an amazing video, full of wonderful concepts and valuable graphical explanations. Thank you.
@shreyassr6115
@shreyassr6115 7 жыл бұрын
nice explanation sir it helped me a lot. Thank You.
@learningstatistics1290
@learningstatistics1290 3 жыл бұрын
27:05
@lynny7868
@lynny7868 Жыл бұрын
21:58
@adrianwong7632
@adrianwong7632 8 жыл бұрын
Thank you for the video. There's a lot of excellent information here, but could you please re-do it without misspeaking so often? It's hard to follow when you keep correcting the words you're saying.
The sound of primes
17:27
NumberCruncher
Рет қаралды 54 М.
99.9% IMPOSSIBLE
00:24
STORROR
Рет қаралды 31 МЛН
The evil clown plays a prank on the angel
00:39
超人夫妇
Рет қаралды 53 МЛН
The Popcorn Function
15:33
Dr Peyam
Рет қаралды 24 М.
Prelude to Galois Theory: Exploring Symmetric Polynomials
32:34
Martin Trifonov
Рет қаралды 48 М.
The Dome Paradox: A Loophole in Newton's Laws
22:59
Up and Atom
Рет қаралды 1,1 МЛН
What Lies Between a Function and Its Derivative? | Fractional Calculus
25:27
Induction on Real Numbers
12:22
Mu Prime Math
Рет қаралды 17 М.
The Dirichlet Function is Nowhere Continuous - Advanced Calculus Proof
6:29
What is the Moebius function?   #SomePi
21:15
All Angles
Рет қаралды 23 М.
The Primitive Element Situation is Crazy
10:20
Andrew McCrady
Рет қаралды 19 М.
99.9% IMPOSSIBLE
00:24
STORROR
Рет қаралды 31 МЛН