Suppose we have 52 cards: 26 black and 26 red ones. When the cards are placed in a row if between two given cards of one colour there is no cards of other...
Rationalize $\dfrac{1}{\sqrt[3]{p^2}+\sqrt[3]{pq}+\sqrt[3]{q^2}}.$ How would I go about doing this without wading through lots of algebra? Is there a tric...
Two rectangles can overlap in lots of different ways. One can be entirely inside the other (2 variations depending on which is inside which). They can ove...
I want to see the following step in greater detail: $$\nabla_x~\bigg[(\vec{x}-\vec{\mu})^TP^{-1}(\vec{x}-\vec{\mu}) \bigg] ~~~~~(3)$$ $$= P^{-1}(\vec{x}-\...
Two teams play a series of baseball games, team A and team B. The team that wins 3 of 5 games wins the series. The first game takes place in the stadium o...
I need to prove the infity norm of a matrix, which is here: $$||A||_\infty = \max_{x \neq 0}\left\{\frac{\max_{1\le i\le n}(|(Ax)_i|)}{\max_{1 \le i \le n...
I've recently played with the IMU filter in MATLAB. When using their examples, they always plot the rotations by stating something alike this: plot(t...