$LowTmode

$LowTmode is a special function aiming at solving the low-temperature problem. At low temperatures, due to the exp(E/kBT) issues, the program is easy to get NAN during iteration with bad initial guess ( it should be right at convergence condition). Hence, this function assumes that the potential profile is similar at high T and low T. It solves high T first and use this solution for the low T's initial guess.

Usage:

$opertemp
10.0

$LowTmode
300.00 0.4   

The program should run for 10K. But it will run 300K first. 
Then run 300.0 * 0.4 =120K 
Then run 120.0 * 0.4 =48K 
Then run 48.0  * 0.4 =19.2K 
Then run 19.2 * 0.4 = 7.68 K -> force to be 10K