Q: Using the simplest program to calculate the 2D Ising model upon triangle lattice. A: 1. Hamiltonian: [eq]H=J\sum\limits_{i,j}{{s_{i}}{s_{j}}}[/eq] 2. Lattice: 3. Summary image: ——CODE&SUMMARY—— *PDF file (some results shown in it): 2D_Ising_Model(Triangle) (A little reminder: I am not really working…