Page 49 - PowerPoint Presentation

2x2 Matrices

What types of transformations can be

represented with a 2x2 matrix?

2D Identity?

x = x  x'  = 1 0   x 
'

y = y y'  0   1    y 
'




2D Scale around (0,0)?

x'= s * x  x'  s x 0  x 

x

y'= s * y  y'  =  0 s y   y 






y