11 x Series / Multiplication Waterfall

I am fascinated with long multiplication and other types of handmade calculations, so I wanted to create a project that unlocked the hidden beauty in the cascading lines of digits created from a seemingly-mundane aspect of our early studies. 

After designating a specific coloured shape for each digit, I began to search for a variety of interesting patterns that occur from multiplying 11 by various strings of numbers. Shown above are four of my favourite patterns. 

With the help of Hadrian Jouet, I created a simple site where one can multiply any number against any other number to discover new patterns at:

Multiplication Waterfall