The determinant of a matrix is how much the matrix expands or contracts space. More precisely: it's the volume of the parallelepiped spanned by the columns of the matrix. (Ditto the rows.) This, btw, is why det 0 => non-invertible: one or more spatial dimensions has collapsedhttps://twitter.com/ZachWeiner/status/1073671743846395905 …
-
Show this thread
-
-
Replying to @Rujo_ @michael_nielsen
This is the best and most concise explanation that I have ever seen, but it requires that you already understand a matrix as a representation and an operator.
1 reply 0 retweets 2 likes -
Replying to @Plinz @michael_nielsen
Oh i see. I am familiar with matrix operations and how to get the determinants however I have problems understanding his explanation of what really is a determinant
1 reply 0 retweets 0 likes
Replying to @Rujo_ @michael_nielsen
Linear algebra is the discovery that you can perform arbitrary computation in nifty ways using tables of numbers and short sequences of addition and multiplication. It's especially useful to deal with stuff moving in computable spaces.
2:17 PM - 14 Dec 2018
from Somerville, MA
0 replies
1 retweet
3 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.