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 Yearling
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May
14
reviewed No Action Needed Precedence of nested NOTs in boolean algebra
May
14
reviewed No Action Needed Simple question in Rank
May
14
reviewed No Action Needed norms of row matrices
May
13
reviewed No Action Needed Finite differences on a hexagonal/triangular lattice with Cartesian coordinates
May
13
reviewed No Action Needed Generalization of the Weierstrass M-test?
May
12
comment $A$ is normal matrix.If $A{A^T}$ has $n$ distinict eigenvalue,why $A$ is symmetric?
$A$ normal means that $AA^T=A^TA$. But $AA^T=A^TA$ does not imply $A=A^T$ in general.
May
10
awarded  Yearling
May
10
reviewed No Action Needed X simple and Y simple problem with double integrals
May
9
reviewed No Action Needed Trigonometry with quadrilateral and triangles
May
9
reviewed No Action Needed Proof base math Course in highschool
May
9
reviewed No Action Needed When is a matrix diagonalizable?
May
6
reviewed No Action Needed Can there be an infinitely long line, that you could get infinitely closer to the end of?
May
6
reviewed No Action Needed Multiplicity of an eigenvalue=number of times it appears on the diagonal?
May
6
reviewed No Action Needed Calculating average rolling cost stock for bulk products
May
4
reviewed No Action Needed Showing that the complete bipartite graph $K_{a,b}$ is a tree if and only if $a=1$ or $b=1$.
May
4
reviewed Reviewed lattice theory in algebraic number theory
May
3
reviewed No Action Needed Why is “the set of all sets” a paradox?
May
3
reviewed No Action Needed Matrix norm inducted by infinite vector norm
May
3
reviewed Reviewed How to detect different types of curves
May
3
reviewed No Action Needed Mixed Strategy Nash Equilibrium in this game?