Range A = range A^tA
28565
Prove $\operatorname{rank}A^TA=\operatorname{rank}A$ for any $A\in M_{m \times n}$
98470
If $A \ne \varnothing$, then $\varnothing^A=\varnothing$
52928
If $\mathrm{Tr}(A)=0$ then $T=R^{-1}AR$ has all entries on its main diagonal equal to $0$
1609
How to use a decimal range() step value?
126711
What is the square matrix $A$ equal to if $A=A^2$
2635
equality of two operators...
104490
Range of $\operatorname{arccot}(x)$
128091
Find the range of possible values of $\sqrt{a^2+a+1}-\sqrt{a^2-a+1}$
61538
Given a square matrix $A$, both $AA^T$ and $A^TA$ are symmetric
145413
Floating point comparison `a != 0.7`
150320
Why does $a^{b}·a^{c}=a^{b+c}$?
17032
If $ab=ba$, Prove $a^2$ commutes with $b^2$
108642
$e^A$, where $A= \begin{bmatrix} 0 & \omega \\ -\omega& 0 \end{bmatrix}$
65062
Prove $\text{rank}(A) \geq \frac{(\text{tr}(A))^2}{\text{tr}(A^2)}$ when $A$ is Hermitian
47829
Prove that $\operatorname{trace}(A^TA) = 0\ \iff\ A = 0$.
101861
How do you prove that $tr(B^{T} A )$ is a inner product?
107108
Is there a standard way to refer to a range of equations?