lagrange newton
...............\c.cpp
...............\c.dsp
...............\c.dsw
...............\c.ncb
...............\c.opt
...............\c.plg
...............\Debug
...............\.....\c.exe
...............\.....\c.ilk
...............\.....\c.obj
...............\.....\c.pch
...............\.....\c.pdb
...............\.....\vc60.idb
...............\.....\vc60.pdb