Harmonic structures are patterns derived from combining a sequence of Fibonacci ratios to define precise predictive shapes.

Fibonacci ratios are a series of ratios derived from a number series called the Fibonacci number sequence.

Fibonacci numbers are derived from the Fibonacci number series identified by mathematician Leonardo Fibonacci in the 13th century.

In mathematics, the Fibonacci numbers are the numbers in the following sequence:

0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144...

This is called the Fibonacci sequence, and it is characterised by the fact that every number after the first two is the sum of the two preceding ones.

These are the Fibonacci ratios.