참고한 필기
https://hacobe.github.io/notes/linear_algebra_3blue1brown.html
3Blue1Brown’s Linear Algebra series — Technical notes
.md .pdf to have style consistency -->
hacobe.github.io
https://hacobe.github.io/notes/intro.html
유튜브 기초 수학 : 3Blue1Brown의 Essence of linear algebra 수강 후기
literally watching all of the ads possible to give this man as much revenue as I can because he deserves it 대학원 수업 선행(?)학습으로 선형대수학을 공부하려는데, 좋은 유튜브 강의가 있어서 공부한..
sysout.tistory.com
https://harshityadav95.medium.com/notes-essence-of-linear-algebra-7d5388b2a940
Notes : Essence of Linear Algebra
Video Playlist Followed :Link to the Video by 3Blue1Brown
harshityadav95.medium.com
오리지널 비디오
https://www.youtube.com/watch?v=fNk_zzaMoSs&list=PLZHQObOWTQDPD3MizzM2xVFitgF8hE_ab&index=1
목표는 하루 10분 3주동안 16개 강의 듣기
오늘은 5/18
1 Vectors | Chapter 1, Essence of linear algebra
- Meaning of Vector is different by majors
- Physicist (arrows pointing in space),
- CS Student (ordered list of numbers, sets),
- Mathematician (addition and multiplication of vector)
- In Linear Algebra, the Vector will always origin at 0,0 in space
- Vectors are coordinates as to how much distance along the X-axis or Y axis , that can also be represented in form of a 2-dimensional Matrix
- (Addition) Sum of Two Vectors = move along vector 1 , then move along vector 2 then the total travel is the sum of the two vectors (ie Matrix addition )then following the end point from the origin
- (Scaling) Multiplication of vectors : scaling the factors by a factor multiplied
좌표를 옮기는 방식을 보면 더하거나 곱하는 것이 왜 이렇게 연산되는지 이해할 수 있다.
[1,2] + [3,-1] = [1+3, 2-1]이 됨
데이터 분석 학생들한테는 데이터를 표현할 수 있는 방법이 벡터고, (집값과 면적의 관계 표현)
물리학자와 수학자한테는 공간 계산을 컴퓨터로 표현할 수 있게 하는 것이 벡터다.