Energy computation and multiplier-less implementation of the two-dimensional FitzHugh–Nagumo (FHN) neural circuitZeric Tabekoueng Njitacke, Gokul Sriram, Karthikeyan Rajagopal, Anitha Karthikeyan and Jan AwrejcewiczEur. Phys. J. E, 46 7 (2023) 60DOI: https://doi.org/10.1140/epje/s10189-023-00319-1