xmin=-6, xmax=6, ymin=-10,ymax=10, xtick={-4,-2,2,4}, ytick={-8,-6,-4,-2,2,4,6,8}, xticklabels={-4,,,4}, yticklabels={-8,-6,-4,,,4,,8},
KTUG 한국 텍 사용자 그룹