psat2.1.2说明文档，用于学习past，稳态暂态潮流计算以及故障分析-psat2.1.2 documentation, for learning past, steady-state flow calculation and fault analysis of transient

地球物理勘探中，根据井曲线匹配最大相位与最小相位-Function finds best match between vectors ref and b within the range min_shift and max_shift