Magic Square Party Trick - Numberphile
Matt Parker shows off his Magic Square party trick (unlike magicians, mathematicians often reveal their secrets). More links & stuff in full description below ↓↓↓ More Magic Square videos:...
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Right, Brady, I'm gonna give you a mathematical gift. I'm not give you many mathematical gifts, I give you a very special one today. And, ehh now, to make it extra special, I often ask people when I do this. It's one of my party tricks. Er...their age. But that feels a little impersonal. So, would you wanna give me a...err...arbitrary number between 21 and 65? What would you? What would you like? Brady: 42. Matt: 42!? Ahh, nerd! Ok! Right, so 42...42...42...40... I guess smaller... I guess here is...2. Right...there's more I'm just...I'm starting with those digits. I'm gonna put a 5 in a... There I'm gonna put a 3...ahh...actually I put a 3 there and 6 there. I'm gonna change it as I go. That's gonna be a ...
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Right, Brady, I'm gonna give you a mathematical gift. I'm not give you many mathematical gifts, I give you a very special one today. And, ehh now, to make it extra special, I often ask people when I do this. It's one of my party tricks. Er...their age. But that feels a little impersonal. So, would you wanna give me a...err...arbitrary number between 21 and 65? What would you? What would you like? Brady: 42. Matt: 42!? Ahh, nerd! Ok! Right, so 42...42...42...40... I guess smaller... I guess here is...2. Right...there's more I'm just...I'm starting with those digits. I'm gonna put a 5 in a... There I'm gonna put a 3...ahh...actually I put a 3 there and 6 there. I'm gonna change it as I go. That's gonna be a ...
