Algorith for arrival and departure time I have got a piece of algorithms which consists of several equations to determine the arrival and departure times of a water vessel to a dock from AIS data. I have problem making out the second equation which starts with abbreviated "s.t." and follows with $s_i^t=0$. The equation 4 also has an identical first part.
Can anyone help me figuring out or give any idea what these means?
Thanks
It stands for subject to and is the constraint on the optimization.
The problem says thay you should minimize $t_i$ with the constraint that $s_i^t$ is zero and $t=\lambda_{ij}^k$ for all $s_i^t$ in $\Gamma_{ij}$ and $k$ in $2,\ldots,n_{ij}$.