How To Understand Combinations Using Multiplication
Multiplication is a wonderful little operation. Depending on the context, it can
- Scale or stretch a number
- Rotate a vector, without needing sine or cosine
And today we’ll see yet another use: listing combinations.
Revisiting multiplication has a few uses:
- It demystifies other parts of math. The binomial theorem, Boolean algebra (used in computer circuits) and even parts of …
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Intuitive Arithmetic With Complex Numbers
A Visual, Intuitive Guide to Imaginary Numbers
A Quirky Introduction To Number Systems
Another Look at Prime Numbers
Number Systems and Bases
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Math & Numbers
- Mental math shortcuts, adding 1-100
- Understanding exponents and the natural log
- Div, Curl, Flux, Gradient and other Vector Calculus topics
Programming & Web Development
- Site speedups with HTTP caching, gzip compression
- Understanding Rails, Web debugging, and Javascrtipt
- Swap bytes with XOR, byte order, unicode
