golden ratio
= 1.6180 to 4 decimal places. This number φ is the golden ratio. A golden rectangle whose sides are in this ratio has throughout history been considered to have a particularly pleasing shape. It has the property that the removal of a square from one end of it leaves a rectangle that has the same shape.
A golden rectangle
http://www.maths.surrey.ac.uk/hosted-sites/R.Knott/Fibonacci/fibnat.html#plants
• Shows the golden ratio in biology and the relationship to Fibonacci numbers.
- half‐angle formula
- half‐closed
- half‐life
- half‐line
- half‐open
- half‐plane
- half‐space
- half‐turn symmetry
- Halley, Edmond
- Halley's method
- Hall's Theorem
- Halmos, Paul Richard
- Halting problem
- Hamel basis
- Hamiltonian
- Hamiltonian graph
- Hamiltonian mechanics
- Hamilton, William Rowan
- Hamming distance
- handshaking lemma
- hardware
- Hardy, Godfrey Harold
- Hardy–Weinberg ratio
- harmonic analysis
- harmonic conjugate