Re: Matrix help needed
In general, if n > m as in your example, the problem is underdetermined. You have m equations and n unknowns. In your example, the vector (0.3, 0.4, 0) is also a solution.
On the other hand, if n < m the problem is overdetermined. It may not have a solution. In either case, you must have some criteria for choosing the "best" solution. The methods for solving problems of this type are somewhat complex. Try looking up singular value decomposition.
|