dicotomia.py

Created on March 10, 2020

217 Bytes

A função solve(f,a,b,epsilon) procura uma solução da equação f(x)=0 entre a e b com uma precisão de epsilon por dicotomia. As imagens de a e b por f, f(a) e f(b) devem ter sinais diferentes.

from math import *
def solve(f,a,b,epsilon):
  if f(a)*f(b)>0:
    return None
  else:
    while (b-a)>=epsilon:
      c=(a+b)/2
      if f(b)*f(c)<=0:
        a=c
      else:
        b=c
    return c

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