分形体是其组成部分与整体相似的形体。以分形体为研究对象的分形几何学诞生于本世纪70年代中期,它的诞生为数学和科学注入了新鲜血液。 传统的几何学研究的对象具有整维数,如零维的点、一维的直线、二维的平面、三维的立体、四维的时空。但是,实际上绝大部分现实物体却不是整维数,而是分维数, A fractal body is a body whose composition is similar to the whole. Fractal geometry fractal geometry as the object of study was born in the mid 70s of this century, its birth for mathematics and science into a new blood. The object of traditional geometric research has the whole dimension, such as zero-dimensional point, one-dimensional line, two-dimensional plane, three-dimensional three-dimensional, four-dimensional space-time. However, in fact, the vast majority of real objects are not the whole dimension, but the fractal dimension,