readme

牛顿插值方法求解多项式的系数

This library is made of 3 parts:
	ftwx, misc, env

env is a collection of environment processing functions.
misc is a collection of miscellaneous functions.
ftwx is a replacement for the standard ftw(3) function.

When installing this library you may need to define the following
flags in the Makefile:
	OLD_DIR if your system does not have the file /usr/include/dirent.h
	__FTWX_NO_FTW if your system does not have the ftw(3) function