单精度COLSYS子程序，用于求解常微分线性、非线性方程组。经过扩容后版本，可以求解1000个最高阶次为4阶的方程。-Single precision COLSYS subroutine for solving ordinary differential linear, non-linear equations. Expansion or later, you can solve the 1000 highest order for the fourth-order equation.