daniel.jackson
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 Apr 27 awarded Nice Question Apr 26 accepted Maximizing rectangle area without intersecting others Apr 17 comment Maximizing rectangle area without intersecting others Is it possible for you to add a picture illustrating this? Apr 17 comment Maximizing rectangle area without intersecting others Looking at the example above, if there's a rectangle E that is above R and to the left of it then it will never intersect with R but you are still taking it in account when finding M. Apr 16 asked Maximizing rectangle area without intersecting others Apr 4 comment Given an infinite bounded set A in $R^n$,$2\leq n$, show there are infinite boundary points Why is there a nonzero vector that is orthogonal to L, and why do you need it to be orthogonal? Feb 22 comment Depending on variable to calculate joint distribution Now that you mention it, of course they're not! Thanks. Feb 22 accepted Depending on variable to calculate joint distribution Feb 22 asked Depending on variable to calculate joint distribution Feb 4 awarded Tumbleweed Nov 7 awarded Yearling Oct 31 awarded Nice Question Oct 31 awarded Nice Answer Jul 10 comment Maximal subspace that a quadratic form is non-negative on @Geoff: why must $z=0$? Jul 10 accepted Maximal subspace that a quadratic form is non-negative on Jul 10 comment Maximal subspace that a quadratic form is non-negative on I must say I didn't completely understand your proof there. Could you point out how to finish the proof I started? Jul 10 accepted if $A^2 \in M_{3}(\mathbb{R})$ is diagonalizable then so is $A$ Jul 10 asked Maximal subspace that a quadratic form is non-negative on Jul 6 comment if $A^2 \in M_{3}(\mathbb{R})$ is diagonalizable then so is $A$ I see. Could you be so kind to provide a proof (a general idea will be fine too)? Jul 6 comment if $A^2 \in M_{3}(\mathbb{R})$ is diagonalizable then so is $A$ Why must it have a nonreal eigenvalue?