用Visual C++实现，不用导数的布伦特法 Visual C+常用数值算法集中的源代码-Using Visual C++ implementation of Brent method without derivative Visual C+ numerical algorithm used concentrated source code

Brent的zeroin算法，快速求解非线性方程的根。 来源 http://people.sc.fsu.edu/~jburkardt/c_src/brent/brent.html(Brent's zeroin algorithm is used to quickly solve the roots of nonlinear equations. From http://people.sc.fsu.edu/~jburkardt/c_src/brent/brent.html)