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## Main Question or Discussion Point

Hi!

I have two sets of matrices where only the sign of each field might differ. I'm trying to calculate a generally applicable matrix that transforms the signs of the source matrix so it has the same signs like the target matrix. I tried calculating the inverse of the target matrix and multiply that with the source, but I'm missing a step. Maybe you guys can help!

Thanks a lot!!

Nhat

TARGET

-1.05529 -0.707107 0.707107 0

-6.18172 -0.707107 -0.707107 0

1 -1.18331 -3.09086 0

-5 5.91657 -14.1421 1

SOURCE

1.05529 -0.707107 -0.707107 0

6.18172 -0.707107 0.707107 0

-1 -1.18331 -3.09086 0

-5 -5.91657 -14.1421 1

I have two sets of matrices where only the sign of each field might differ. I'm trying to calculate a generally applicable matrix that transforms the signs of the source matrix so it has the same signs like the target matrix. I tried calculating the inverse of the target matrix and multiply that with the source, but I'm missing a step. Maybe you guys can help!

Thanks a lot!!

Nhat

TARGET

-1.05529 -0.707107 0.707107 0

-6.18172 -0.707107 -0.707107 0

1 -1.18331 -3.09086 0

-5 5.91657 -14.1421 1

SOURCE

1.05529 -0.707107 -0.707107 0

6.18172 -0.707107 0.707107 0

-1 -1.18331 -3.09086 0

-5 -5.91657 -14.1421 1