For example, tree branches, clouds and mountains in nature can all be regarded as fractal structures.

Patterns, patterns, and music in man-made objects can also be considered fractals.

It has wide applications in natural sciences, social sciences and humanities.

While studying financial markets in the 1970s, he discovered some unusual price change patterns.

He called these patterns fractal structures and developed the concept of fractal geometry.

His contribution is considered one of the most important discoveries in mathematics of the 20th century.

In medicine, fractal geometry can be used to study complex physiological phenomena such as electrocardiograms, electroencephalograms, and cardiovascular systems.

In meteorology, fractal geometry can be used to study the statistical laws of meteorological data.

In computer graphics, fractal geometry can be used to generate realistic natural scenes.

In financial markets, fractal geometry can be used to study price change patterns in stocks and futures.

Solving these problems will help to better understand the nature and applications of fractal structures.