Back when I was taught matrix multiplication, I was told matrix is "just a table of numbers", and in order to "multiply" matrix to another, you walk from left to right, and on the other matrix, you go top to bottom. And th... (muffled voices). I thought it was game invented to pracitce more integer multiplication and improve concentation.
Later, during college, I see matrices again! I went, "hang on, I thought... that wasn't a game after all?!".
Decades later I discover 3b1b and Pavel Grinfeld [1] videos. My fist emotion was anger: "This is what you told me 'just a table of numbers'?". What a cruel joke!
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Back when I was taught matrix multiplication, I was told matrix is "just a table of numbers", and in order to "multiply" matrix to another, you walk from left to right, and on the other matrix, you go top to bottom. And th... (muffled voices). I thought it was game invented to pracitce more integer multiplication and improve concentation.
Later, during college, I see matrices again! I went, "hang on, I thought... that wasn't a game after all?!".
Decades later I discover 3b1b and Pavel Grinfeld [1] videos. My fist emotion was anger: "This is what you told me 'just a table of numbers'?". What a cruel joke!
[1] https://www.youtube.com/playlist?list=PLlXfTHzgMRUKXD88IdzS1..., https://www.youtube.com/watch?v=I04GHpKc-WQ&list=PLlXfTHzgMR..., https://www.youtube.com/watch?v=odV3oJOpE8s&list=PLlXfTHzgMR...
Thank you very much for the links. Please share any other cool educational materials you know.