I'd like to ask what is the main reason why we find the roots in logistic regression (i.e. why we use Newton Raphson method on logistic regression ). I understand the basics of Newton Raphson method, but I just can't understand what is the importance of finding the roots or using second derivatives.
P.S. I know the idea of Newton Raphson, I am wondering why do we need to use this method and find the zero's or roots of function? What does it want to tell us for logistic regression for instance?