The Hammersley and Halton point sets, two well known low discrepancy sequences, have been used for quasi-Monte Carlo integration in previous research. A deterministic formula generates a uniformly distributed and stochastic-looking sampling pattern,

运用随机生长法绘制煤的三维微观结构，显示其外部及内部结构。-Draw up the coal of the three-dimensional microstructures using the method of stochastic growth ,and display the external and internal structure.

Including stochastic gradient algorithm, the relative gradient algorithm, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. To achieve the recognition of 10 digital sound.