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