基于分段非线性权重值的Pso算法，时间序列数据分析中的梅林变换工具，是小学期课程设计的题目，复化三点Gauss-lengend公式求pi，虚拟力的无线传感网络覆盖，包括面积、周长、矩形度、伸长度。- Based on piecewise nonlinear weight value Pso algorithm, Time series data analysis Mellin transform tool, Is the topic of the elementary school stage curriculum design, Complex of three-point Gauss-lengend the Formula pi, Virtual power wireless sensor network coverage, Including the area, perimeter, rectangular, elongation.