l0/bl0/dd0/I<8101214161820222426283032343638404244464850<78.510.5121415.517192122.524262829.5313334.536.5384041.543<2835424855656979839097104111118125132139146153160167174φ1.0.98.95.92.87.81.75.70.65.60.56.52.48.44.40.36.32.29.26.23.21.19插值计算小数10对应值0.98中间值10.667计算值0.976665大数12对应值0.97