System/Matrix

[paper thistle]

i am really struggling with this
the only answer i found was x =[0,0,0]

[simple bolt]

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[paper thistle]

this is P btw

[glad oriole]

just do Gaussian elimination

or if you know eigentheory already, you want the 1-eigenspace of P

[paper thistle]

row reduction ?

[glad oriole]

yes

[P-I | 0] and [RREF(P-I) | 0] have the same solution spaces

[paper thistle]

infinite solutions ?

[glad oriole]

there are infinitely many solutions, yes

[paper thistle]

i think i messed it up

[glad oriole]

you most certainly did if you only got the trivial solution

[paper thistle]

i distributed the x vector

then set Px = x

[glad oriole]

cool

[paper thistle]

i think that's the mistake

[glad oriole]

yeah, you definitely messed up

just solve (P-I)x=0 like normal

[paper thistle]

okay

[glad oriole]

or, again, if you know eigentheory, use that

[paper thistle]

oh yeah

i got the solution

thank you

😃

+close