Minimizacion
&cntrl
 imin = 1, maxcyc = 5000, ncyc = 500,
 ntmin = 1, dx0 = 0.1, drms = 0.0001,
 ntx = 1,
 ntpr = 500,
 ntb = 2, ntp = 1,
 ntc = 1, ntf = 1,
 ibelly = 1, bellymask = "@H=",
&end