化工原理的局部阻力系数求解代码，包含粗糙管光滑管局部阻力管拉姆塔和Re求解，还有通过柏拉休斯方程求解拉姆塔，求光滑管误差，最后粗糙管画图-Local resistance coefficient of chemical principles to solve the code, including smooth and rough tubes and pipes local resistance tube 拉姆塔 Re solving, as well as La Muta by Plato H

比特加载技术相关算法，包含Fischer算法，贪婪算法以及chow算法。-bit loading algorithm, include Hughes-Hartogs Algorithm, Fischer Algorithm and chow algorithm