False Position Method
A. Installation 1. Install Python3 2. pip install -r requirements.txt
B. How To Use 1. python fp.py or ./fp.py 2. Use x as function variable, example : 3x^2+5x+2 ==> 3x**2+5x+2 ( ** as power, * as multiply). 3. Make sure f(xl) and f(xu) have different sign