David Stahl wrote:
>
> Hi!
>
> I like to solve the following problem:
>
> I got 4 known input vectors (1x4) : X_1..4 and 4 known output vectors
> (1x4) : Y_1..4.
>
> M x X_1...4 = Y_1...4
>
> So, there is a transformation matrix 4x4 which describes the transformation
> of the 4 input vectors to the output vectors.
> My problem is to determine this matrix . Labview offers only a vi which
> determines a unknown Input vector X for a known Matrix M and a known output
> vector Y.
> Does anybody know a way to determine the Matrix with this vi? Or is there
> any other VI which fits to this problem?
> I can't imagine there is no one who didn't have this problem before.....
>
> Thanx,
>
> David
David,
this looks like 4 equations and 16 unknowns. You
could try a web
search on 'pseudo inverse' (for x), then figure out the vi's you
need to implement the algorithm. The Labview advanced analysis
package might have a vi already made.
Walter