Find an orthogonal vector
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Samuel Hoppen
on 16 Feb 2021
Commented: Samuel Hoppen
on 16 Feb 2021
I have the following matrix: M = [3 18 0;-3 -2 5;-1 5 0;3 3 -9]
I need to find a vector that's orthogonal to all of the vectors in this matrix. I'm familiar with how to solve for a vector that's orthogonal to two vectors (solving for lambda and multiplying lambda by a vector), but not sure how to solve for multiple vectors. Any help is appreciated!
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Accepted Answer
John D'Errico
on 16 Feb 2021
Never call a variable O. Consider how difficult it will be to find the bug one day, when you see or write a zero, instead of O. And consider that in some fonts, the difference between them is very slight.
As to the question, use null.
help null
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James Tursa
on 16 Feb 2021
Why do you think null( ) did not give you the correct vector? What did it give you and what were you expecting differently?
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