A fractal is a curve which has the same degree of regularity
no matter at what distance or magnification it is viewed.
of the simplest such curves is the Koch snowflake curve, named
after the Swedish mathematician Helge von Koch who first described
it in 1904. To see how it is formed, start with an equilateral
triangle, then construct equilateral triangles on the middle
third of each side as shown, to form a six-pointed star. Now
construct equilateral triangles on the middle third of each
side of the star, and continue the process indefinitely.
Fractals are commonly used in computer-generated graphics.