Update src/8_many_atoms_sol.md

src/8_many_atoms_sol.md

@@ -67,7 +67,7 @@ pyplot.plot(k[299:200:-1],-(t1+t2)*np.cos(k[300:399]/2),'r--')
 
 pyplot.xlabel('$ka$'); pyplot.ylabel(r'$E-\epsilon$')
 pyplot.xticks([-2*pi, -pi, 0, pi,2*pi], [r'$-2ka$',r'$-ka$', 0, r'$ka$',r'$2ka$'])
-pyplot.yticks([-t1-t2, 0, t1+t2], [r'$-t_1-t_2$', '0', r'$t_1+t_2$']);
+pyplot.yticks([-t1-t2, 0, t1+t2], [r'$-t_1-t_2$', 0, r'$t_1+t_2$']);
 pyplot.vlines([-pi, pi], -3, 3, linestyles='dashed');
 
 pyplot.legend(loc='lower center');