What are the most common algorithms used for electromagnetic simulation? Which one is the best to use?

There are many kinds of algorithms in electromagnetism, the common ones are time-domain finite-difference method (FDTD), time-domain finite-integral method (FITD), method of moments (MoM), finite-element method (FE), boundary-element method (BEM), spectral-domain method (SM), transmission-line method (TLM), mode-matching method (MM), transverse-resonance method (TRM), method of lines (ML), and analytical method, etc. Recently, there is another EIT algorithm, which is an innovative technique based on FDTD. Recently, there is an additional EIT algorithm, which is a revolutionary technology based on the FDTD algorithm. the EIT algorithm overcomes the trapezoidal error of the traditional FDTD algorithm in the simulation of bending metal interfaces and dielectric interfaces, avoids the loss of accuracy, and maintains the algorithm's accuracy and efficiency; it solves the problem of the efficiency of the *** shaped FDTD algorithm's stability requirements leading to the reduction of the time-step length, which does not need to be reduced to keep the computational speed. Simply put, in the case of ensuring the same accuracy, the computational speed of EIT is faster. At present, the EIT algorithm main representative CAE software is Zhongwang electromagnetic simulation software, suitable for solving antenna / antenna array, radar, microwave devices, EMC / EMI, high-speed interconnection of SI, electromagnetic propagation and scattering, etc., as well as any structure electric large broadband electromagnetic problems.