Graphical labs · Numerical simulation
Ising model
2D Metropolis, Onsager T_c
H = −J Σ_<ij> s_i s_j · Metropolis · T_c = 2 / ln(1+√2) (Onsager)
Gold = +1, dark = −1. Periodic lattice, h=0, J=1.
- T / J
- 2.20000
- Onsager T_c
- 2.26919
- T / T_c
- 0.969511
- m
- -0.00878906
- E/N
- 0.00292969
Teaching-resolution numerical scheme. On-screen quantities are diagnostics of the discrete model. FrameCalc is educational software. Results are for study and comparison, not medical, radiation-protection, or engineering sign-off. Fusion tools are models, not device predictions. Accuracy · Legal