matlab求微分数据如下（第一列是x,第二列是y,第三列是y对x的一阶导数,第四列是y对x的二阶导数）

matlab求微分数据如下（第一列是x,第二列是y,第三列是y对x的一阶导数,第四列是y对x的二阶导数）1.545000E+000 1.451565E+000 -1.862350E-003 1.075000E-0031.546000E+000 1.451563E+000 -1.861250E-003 1.125000E-0031.547000E+000 1.451562E+000 -1.860100E-003 1.150000E-0031.548000E+000 1.451560E+000 -1.858950E-003 1.150000E-0031.549000E+000 1.451558E+000 -1.857800E-003 1.175000E-0031.550000E+000 1.451556E+000 -1.856600E-003 1.175000E-0031.551000E+000 1.451554E+000 -1.855450E-003 1.125000E-0031.552000E+000 1.451552E+000 -1.854350E-003 1.150000E-0031.553000E+000 1.451550E+000 -1.853150E-003 1.175000E-0031.554000E+000 1.451549E+000 -1.852000E-003 1.075000E-0031.555000E+000 1.451547E+000 -1.851000E-003 9.250001E-004结果是第三、四列 求助matlab 程序