I would love to have a t-shirt with a Parker Sudoku on it. Random numbers everywhere, maybe even letters thrown in for good measure. Sounds just like my cup'o tea.

I died at the put 12 in one square :D

Why doesn't he change his name to Math Parker?

"The only reason I have this CD, right? I listen to it with all the dangerous high frequencies removed, as a kind of way of inoculating myself against his tunes. Hey, there's a fever going around!" Oh my goodness. That was brilliant. :'D

You made my day when you called the iPhone a universal Turing machine!

The next time that I am on a train, I'm doing the sudoku thing, but rather than just random number generating, I'm going to complete it. In dozenal.

That is, indeed, unquestionably the absolute best use of Sudoku 😂; just brilliant.

To be fair, making Maths both funny and educational at the same time, is a bloody fantastic skill

Came to this video in an automated playlist and I dreadfully noticed the next video not being from your channel which means that in about 5 videos Google will have decided that it's time for me to watch one of the major youtube partners because somehow it's "related" to maths. In 6 videos I probably will know how to apply make up, in 10 videos I'll know the story of a major game that came out 2015, in 20 videos I'll know the 10 ten of everything and in 40 videos I'll have watched home abortions and cyst removals. KZfaq, because who could have guessed that watching 10 videos in a row from one channel could mean that you currently enjoy that channel.

I have always loved numbers and the inherent magic they contain. I couldn't become a mathematician myself but when I see it hear one I am filled with an overwhelming sense of joy and ofcourse admiration. Awesome work Matt!

So you know, I actually wound up using the knowledge about check digits along with UPC's having consecutive values (minus check digit) of for clothing size increments to figure out if there was a medium size jacket when a large was given to me at my job today. They can look that stuff up of course in the system but using some mathematical reasoning I was able to save everyone a bunch of time.

I really need to try the Sudoku thing LOL

I played along with the calculator thing at the beginning and must've typed in the same 4-digit number as that bloke did, because my number was identical. Spoooooky.

parker is a mathematician and a comedian. what a combination !

Only discovered Matt a few years ago and used the picture on the excel spreadsheet to show my class. Very funny and explains clearly.

Oh my god a whole row of 7s. absolutely barbaric. I love it.

This is absolutely fantastic.

My right ear loved this video. Left ear... kinda meh about it.

This is brilliant. I never thought about this use for the principles of sudoku.

That sudoku part had me in stitches xD

The opening joke has a 2 in 10 chance of being a trap. If the one's digit of the four digit number is 0 or 1, the rule applied after leaves you with a 50/50 chance that the guessed digit will be a zero or a nine.

Love Matt, but watching how good he is in front of a crowd vs a camera makes me understand why Steve is slaying him in subs! He needs a live audience, and that kind of talent is so rare he's too good to thrive on youtube

My right ear is laughing it's lobe off!

The next time you do stand up, you should be sure to wear that parker square t-shirt :-D

We love this guy! Brilliant.

I couldn't finish a sudoku when i was on the train the other day, so i remembered this and put random numbers in!

Base 1 sudoku.

"Dispense a microphone 🎤? " Was this presented at a vending machine park? LoL

Cannot believe this guy has only 8 likes on Facebook.

That sudoku bike at the end was hilarious =)

Brilliant camerawork

Numberphile hero!

I thought this was 11 MONTHS ago. Glad Matt hasn’t changed.

the letters may have been in a higher base

Clever, engaging, fun!

What a brilliant Mattematician.

one of few videos I can watch at the max res

Every time he said "Suduku", I died a little inside.

Awesome! I love information theory! Best branch of Mathematics. Claude Shannon was a badass.

This guys delivery reminds me a lot of Adam Hill. I enjoy that.

Needed, literally needed, the subtitles to understand this in places.

My right ear loved this

Numberninja XD

I remember learning about barcode check digits in high school math.

In that first trick, if the starting number ends in 0 or 1, then the last digit of the number multiplied by 9 could be a 0 or 9, and his trick could fail.

The second time he says Nick Clegg the YT captions pick up 'Nuclear Bomb'.

now seeing this after doing year 12 math, I actually understand all his stuff about sudoku, although it is actually matrices xD good fun maths!

when he asks who has a calculator and i realize i have mine on my bedside table, when i get up keep it in my pocker, and thus almost always have my ti 84 plus color within reach.

That sodoku tho, an absolute madman lmaooo

If they ask you to do the Royal Institution Christmas Lectures please say yes!

People like Matt are gonna leave a better world for the rest of us by getting people to actually like math

"Number Ninja" - Love it

My right ear really liked this some

I was so expecting this to be about Modulus 11 (I coincidentally got the 1 from Mr. Smartarse's 4 digits) that I tried to get the last digit from the barcode. No such luck. You've defeated me this time, Parker, but I will be coming back soon.

Nick Clegg joke at 6:20 was amazing

I'd be the one with a calculator and a universal turing machine.

The only thing that would make that Suduku prank even better is if you pretend to be on the phone having an unrelated conversation while you're filling in random numbers. Not only is it easy, it's easy while you're distracted.

regarding the initial number trick, doesn't that fail if the first 4 out of 5 digits already up to 9? Because then the final digit could be either 0 or 9, right?

woooooo!

but what if, for example I picked the number 3120, if I multiply by 9 I will get: 28080 add digits: 2+8+0+8=18, which is a multiple of 9, so the last digit can be 9/0

MP in 2011: 3:39 "There's a fever going round". 9 years later in 2020: Yep!

For all those who don't understand Matt's explanation on how to calculate the last digit of the barcode check mathspig.wordpress.com/tag/how-to-calculate-the-check-digit-on-a-barcode/ (and remember that google is your best friend :) )

I might do the Sudoku thing on the train!

What he is describing basically sounds like a parity check

"If you get someone who , put in another row of 7s." Did anyone manage to catch that?

Katie steckles did a similar thing for our school a week or two a go.

My right ear laughed really hard

I'd like to see a legit recording of this. This looks like a bootleg taken from the audience with a cell phone. The audio is for crap.

How did he do the first trick, I didn't really understand, would love to try this trick.

I'm going to say "let's n+1 this up a notch" way more often in my wrong med school major study group.

Matt, with regards to the first trick, what if someone gives you digits that already add up to a number divisible by 9? For example, 4+6+2+6 = 18. Do you just take a 50/50 guess at 0 or 9?

Sudookoo

l said one before Matt did. l feel supreme.

i typed random numbers into a calculator and ended up typing the same 4-digit number the guy did......

I swear I'm gonna do the sudoku "trick" :D

1729th like hell yes!

Woop woop!

That sounded like Rebecca (Nerdcubed’s wife) saying “it starts with a letter.”

Why was this in the Mother 3 aqua midi playlist?

So this is why his channel is called standupmaths? I thought it was because he only showed the highest quality math on his channel

Suduku? You mean sudOku?! Fun game...

Whoever captioned this really really doesn't know what to do with Nick Clegg...

I have a question about that 9 trick...suppose the person tells you that the first 4 digits are 8-1-0-0. Then the last digit can be either a 0 OR a 9. Meaning, if the result lands in a ten digit interval with 2 multiples of 9 (like 90 and 99, 81000 and 81009). What would you do then, or do you just hope they don't pick one of those?

What do you call it when Parker puts 12 in one square?

I clicked on this thinking it was one of the guys from South Park. Then I realized it's Matt Stone and Trey Parker. Sigh. Good mistake though.

Would have liked to watch the video, but the audio was killing me... :(

This was in the “hair era”

Regarding the soduko on the train, make sure you do it with a pen, not a pencil!

my left ear is fairly dissapointed here and is it tom who is the host here??

Keep a running total of the even digits and the odd digits at the same time, multiply the first total by 3 and add the second total, then divide by 10. Okay, piece of cake. What was that first digit again?

why are the audio channels so unbalanced

a parker sudoku

"My name is Math. I'm a mattematician", I swear I heard that

Is that Tom Scott as the MC?

He’s wearing a barcode

I guess you could call it parker square sudoku

Are there actually people who don't know about barcode checsums or the multiple of nine trick?!

The first one won't work if he gave a number like 8226, because the last digit could be either 9 or 0

What do you do in that 10% chance? just take a guess? I mean that trick at best only works 95% of the time.

"Suuduuukuuu"?