A fractal is a never ending pattern, Fractals are infinitely complex patterns that are self - similar across different scales. They are created by repeating a simple process over and over in a non - ending feedback loop. Driven by recursion, fractals are images of dynanmic systems - (the pictureof Chaos). Geometrically, they exist in between our familiar dimensions.
A geometrical or physical structure having an irregular of fragmented shape at all scales of measurement between a greatest and a smallest scale such that certain mathematical or physical properties of the structure, as the perimeters of a curve or the flow rate in a porous medium behave as if the dimensions of the structure (fractal dimensions) are greater than the spatial dimensions.