Day 8 Outline

Feb 22, 2018

2.2 Matrix inverse, cont'd

2x2 inverse

When does a 2x2 matrix not scrunch?

Determinant of 2x2.

Formula for 2x2 inverse. Demonstrate by brute force.

2.3 Characterizations of invertible matrices

20180219_133042_2.3_theorem.jpg

Discuss.

Contrapositive idea for d implies c.

2.7 Appplications to computer graphics

Transformations of letter N

2.7.ipynb

Homogeneous coordinates for R2

Homogeneous coordinates for R3

Perspective projection

Ch 1.9 Exercise 9

Solution