令左上角=(1,1) 設(3,3)=109+a 則(3,4)=109+2a (2,3)=(109+a)*2-146=72+2a (1,3)=(72+2a)*2-(109+a)=35+3a (1,4)=58*2-(109+2a)=7-2a (1,3)=(7-2a)*2-0=14-4a 35+3a=14-4a a=-3 ------------------------------- 52 82 112 142 172 39 74 109 144 179 26 66 106 146 186 13 58 103 148 193 0 50 100 150 200 行公差:-13,-8,-3,2,7 列公...