Many methods in the numeric calculus resolving nonlinear algebraic 
or differential equation but ignore some behavior of these problems. 
Same aspects can conjure to the fractal iterative techniques. 
In this paper work is performed a critical analysis about iterative 
fractal techniques which can conduct to various implemented applications. 
Study of the nonlinear equation, treated into iterative techniques, 
makes the subject of this paper. It consists in a short revue of the 
most important principles of the fractal calculus and complexity applications 
in fundamental sciences and technologies. If trying to solve the equation 
z4-1=0 in the complex plan, we can obtain the Newton's fractal. 
And this is not the single case when a numeric method for solving nonlinear 
algebraic equations has same strange behavior. If we modify the fractal 
logistic equation with the goal to perform an appropriate model for some 
physical applications, we can obtain some interesting and amazing results.