Shiny Pebbles and other stuff

What is the relationship between Russian peasant multiplication and modern cryptography? Unlike the multiplication proce...

The reason why, we really should discuss. So, why is the result of multiplying two negatives numbers together a posit...

Schroedinger's cat is not alive, is not dead, and is not simultaneously alive and dead. It's more interesting tha...

At secondary school and then university, we meet a variety of definitions of the derivative, all motivated by the fundam...

Greatest Common Divisor The problem is simple: given two positive integers, \(a\) and \(b\), how do we find \(\gcd(a,b)\), the greatest ...

...\(i\) wants to be a quaternion. We can think of the complex numbers as two dimensional vectors, with a rule for multip...

Where did complex numbers come from? You might think that people invented \(i\) just so that they had a solution to the quadratic equat...