Compute the matrix $A^t$ for the following cases: $A_1=\begin{bmatrix}0&0\\0&1\end{bmatrix}, \quad A_2=\begin{bmatrix}-1&0\\0&-2 \end{bmat...

I asked my Calculus Teacher this and he had no answer, we were talking about linear equations just to brush up on grade 12 maths and I never thought to as...

I was just wondering why we don't ever define multiplication of vectors as individual component multiplication. That is, why doesn't anybody eve...

How can I find this probability $P(X<Y)$ ? knowing that X and Y are independent random variables.

I am wondering if anyone could explain how the following formula works, it is supposed to take the input as a point on a cube then map that to points on a...

Question: Find $Aut\left ( \mathbb{Z}_{6} \right )$ Note that $\mathbb{Z}_{6}=\left \{ 0,1,2,3,4,5 \right \}$ Observe: $\forall k \in \mathbb{Z}_{6}$, $k^...

I'm reading the Handbook of Graph Theory. I guess It says that the sum of the flows going is equal do the sum of flows going back, I'm confused ...

I am just trying to learn what transitive group action is. It seems I understand the definition, but I still have an issue. We read on Wikipedia that (emp...

I have a problem that I'm having trouble figuring out the distribution with given condition. It is given that 1/($X$+1), where $X$ is an exponentiall...

I need to find the Laplace transform of $f(t) = t \cos{t}$. I tried using the Taylor series expansion for $\cos{t}$ but I got stuck since the resulting ex...