Chapter 1 Vectors
Chapter 1 Vectors
the intorduction of numbers as coordinates is an act of violence
vector is the basis of linear algebra
1. Three perspectives
physics students' perspective:
length + direaction
CS students' perspective:
lists of numbers but in order
dimensional of the vectors is their lists length
Mathematician is the general of these
add & multiply
2. Add & Multply
scaling -> scalar
3. advantages of these two perspectives
Physics studnets' perspective:
可视化寻找规律
CS students' perspective:
方便计算机数值处理、运算