Discrete exact solutions for the double-well potential model through the discrete tanh method Yaouba Amadou, Gambo Betchewe, Douvagai, Mibaile Justin, Serge Y. Doka and Kofane Timoleon Crepin Eur. Phys. J. Plus, 130 1 (2015) 13 Published online: 29 January 2015 DOI: 10.1140/epjp/i2015-15013-9