2 not known, or not known to many people: --
His whereabouts are still unknown.
In this example, there are 36 fundamental equations in 36 unknowns.
To solve this system, it is necessary to introduce six new unknowns in order to obtain a nonlinear system of 24 equations with 24 unknowns.
In such a situation, the value of some unknowns can be fixed so as to solve the equations for the rest.
Thus, these results consolidate the choice to take the parameters of abductionadduction as unknowns.
We remark that this expansion contains two free constants f(0) and f (0), which were treated as unknowns.
The problem unknowns are simply the coefficients of these functions.
Within the paper theoretical standard deviations of the unknowns are calculated depending on the configuration of the data sets.
Note that, in this formulation, the value of the s-fold eigenvalue is one of the unknowns to be determined.
