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I remember reading about determinants in high school. The name was scary and not much context was given. 😦
For a long time, a determinant was just a value I had to blindly compute using a formula.
Here's what I would like to know about determinants when I first started... 🧵 twitter.com/i/web/status/1…
For a long time, a determinant was just a value I had to blindly compute using a formula.
Here's what I would like to know about determinants when I first started... 🧵 twitter.com/i/web/status/1…
The word "determinant" appears when we are learning about matrices.
And since we want to build some *intuition*, let's look at a simple 2x2 matrix first.
We learn that the determinant of a 2x2 matrix is:
| a b |
| c d | = a*d - b*c
But where does that come from?
And since we want to build some *intuition*, let's look at a simple 2x2 matrix first.
We learn that the determinant of a 2x2 matrix is:
| a b |
| c d | = a*d - b*c
But where does that come from?
Alright, let's go back in time!
Seki Kōwa was a Japanese mathematician from the Edo period. He had Samurai origins but was adopted into the noble Seki family, subject of the shōgun.
As a kid, he had great potential with numbers. He was often called "Japan's Newton".
Seki Kōwa was a Japanese mathematician from the Edo period. He had Samurai origins but was adopted into the noble Seki family, subject of the shōgun.
As a kid, he had great potential with numbers. He was often called "Japan's Newton".
