高次方程求解的c代码实现，用于数值分析课，简单实用，可作为参考-Lagrange interpolating polynomial,Bisection algorithm,Newton’s method and Secant method

An simple bisection algorithm for optimisation for an 1D function.

Chapter 2. The Solution of Nonlinear Equations f(x) = 0 Algorithm 2.1 Fixed Point Iteration Algorithm 2.2 Bisection Method Algorithm 2.3 False position or Regula Falsi Method Algorithm 2.4 Approximate Location of Roots Algorithm 2.5