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MIT 18.06 Linear Algebra, Spring 2010
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OpenStudy (anonymous):
Why are free variables important?
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OpenStudy (anonymous):
With free variables we can find the null space of a matrix A, or that space which is spanned by all x such that Ax = vector 0
OpenStudy (anonymous):
free variables in general are like degrees of freedom. It gives you a feel for how many degrees of freedom are present in the space. (here null space)
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