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age 19
visits member for 3 years, 6 months
seen Jul 19 at 10:44

Jun
22
comment How can a subspace have a lower dimension than its parent space?
I'm sorry, I made a mistake with my example - the real core question is, how can a subspace have a lower dimension than its parent space? (according to the above theorem) - that's why I made up that example.
Jun
22
revised How can a subspace have a lower dimension than its parent space?
added 201 characters in body
Jun
22
asked How can a subspace have a lower dimension than its parent space?
Jun
22
asked Understanding coordinates with respect to orthonormal bases.
Jun
21
accepted Orthogonal complement of a line in $\mathbb{R}^2$ spanned by $(1,2)$
Jun
21
asked Orthogonal complement of a line in $\mathbb{R}^2$ spanned by $(1,2)$
Jun
19
accepted About vector orthogonality with itself and implication in a subspace's complement.
Jun
19
asked About vector orthogonality with itself and implication in a subspace's complement.
Jun
18
accepted If a vector fulfils one condition in this theorem, does it automatically fulfil both?
Jun
18
asked If a vector fulfils one condition in this theorem, does it automatically fulfil both?
Jun
17
accepted Understanding the orthogonal complement of a subspace.
Jun
17
comment Understanding the orthogonal complement of a subspace.
Ahhh it all makes sense. Yes, thank you.
Jun
17
comment Understanding the orthogonal complement of a subspace.
And the orthogonal complement of a line in 3D is another line, too? Is a plane ever the orthogonal complement of something?
Jun
17
asked Understanding the orthogonal complement of a subspace.
Jun
17
comment About an orthogonal complement theorem
@JulianP: You're right! I guess that's the problem?
Jun
16
comment Coordinate vector of a subspace of $\mathbb{M}_{2,2}(\mathbb{R})$
@user84413: I'm sorry, I didn't know that. I have added the basis. $\left\{ \left ( \begin{matrix} 1 & 0 \\ 0 & 1 \end{matrix}\right ) , \left ( \begin{matrix} 0 & 1 \\ 1 & 1 \end{matrix} \right )\right \}$
Jun
16
revised Coordinate vector of a subspace of $\mathbb{M}_{2,2}(\mathbb{R})$
added 199 characters in body
Jun
16
asked About an orthogonal complement theorem
Jun
16
accepted Determining that this basis is linearly independent with a variable
Jun
16
asked Determining that this basis is linearly independent with a variable