A calculation program written by MATLAB for System Matrix in ideal lenses, and by light path tracing and numerical fitting the aberration (spherical aberration) polynomial and its curve are shown.

• 摘要给出了理想光具组系统矩阵的MATLAB计算程序，并借助MATLAB进行光线追迹与数值拟合，得到了像差（球差）的多项式及曲线图。