计算入流角公式，自动绘制出入流角与叶尖速比之间的关系图，用于分析风机叶片的气动效率-To calculate the inflow angle formula, automatic drawing and out of the flow diagram of the relationship between the angle and tip speed ratio for the analysis of the aerodynamic efficiency of the fan blades

电网计算中的一部分，处理电网拓扑结构，实现了自动电网拓扑结构分析，开闸合闸后的自动拓扑结构修正，在就行拓扑结构调整时速度很快。-Part of the grid computing processing power grid topology, automatic grid topology, the floodgates after closing automatic topology correction, fast line topology adjustment.