#20260728[br]d=滑动条(0,180,1)[br]赋值(d,90)[br]D=重心(t1)[br]Mc={{1,0,x(D)},{0,1,y(D)},{0,0,1}}[br]Mrr={{cos((d*1)°),-sin((d*1)°),0},{sin((d*1)°),cos((d*1)°),0},{0,0,1}}[br]MR=Mc Mrr Mc^(-1)[br][br][br]Arcs5=序列(序列(应用矩阵(Mtu^(j) Mtr^(i) Mc Mr90^(元素(m1,i,j)) Mc^(-1)[br] ,{t1}),i,1,n),j,1,n)[br]