Google has been surprisingly unhelpful for me. A homework problem from my algebra class asks me to Calculate p(A) where A is a Jordan cell and p is a poly...

When rounding a percentage, is it preferable to use "to the nearest percent" or "to the nearest percentage point"? Does this change if we want to round to...

I am trying to determine how they derived number of cables needed in a full mesh network According to networking books it is $\dfrac{N * (N-1)}{2}$, where...

before I go further I want you to know that I'm developing a collision detection system in a programming language (Javascript). I'm not used to ...

In a problem in a differential geometry (where I prove that a surface such that all of its geodesics are planar, is either contained in a plane or in a sp...

I use The Matrix Cookbook by Kaare Brandt Petersen and Michael Syskind Pedersen to solve many problems (mostly matrix derivatives). In most cases, I just ...

Painting cube with 3 colours (using each colour at least one time) Find no. of ways to colour the cube. (Rotation don't change the colouring.) Solve ...

How can one calculate the vector normal to the plane that is determined by given points? For example, given three points $P_1(5,0,0)$, $P_2(0,0,5)$ and $P...

I am new to logic and studying it by Enderton's A Mathematical Introduction to Logic (2nd edition). For question 3.3.1 in the books, which states Sho...

This MathWorld page gives this definition of a Fourier transform: $$F(k) = \int_{-\infty}^{\infty} f(x) e^{-2\pi i k x}dx.$$ But, I wish to speak in terms...