Phi Symbol
The Greek letter phi (φ) is used in geometry as a constant to represent the golden ratio.
Symbol  Format  Data 

φ  Unicode 

TeX 


SVG 
Usage
Golden Ratio  Concept
The golden ratio is a number represented by the greek letter ϕ (phi). The value of ϕ is approximately 1.618 and is a naturally occurring number in nature. The golden ratio is often associated with the golden rectangle whose sides form a ratio equal to ϕ.
Golden Rectangle  Concept
The golden rectangle is a rectangle whose width divided by height is equal to the golden number (approximately 1.618).
Greek Alphabet  Concept
The Greek Alphabet is used throughout math to represent variables, constants, and coeffecients within math expressions, formulas, and equations.
Related Symbols
Capital Phi  Symbol
The capital Greek letter (Φ).