(ax=[0,1,1,0:0,0,1,1 (b)A1=[-1,0:0,1] (cA2=[1.5,0;0,1] 2 2 1 1 0 0 0 0 0 (d)A3=[1,0:0,0.5] (e)A4=[1,0.5;0,1](0A5=[cost),sint;-sint),cc 2 0 0 0图 9.1 对单元方格进行几种线性变换后生成的图形