The symbol "φ" (Phi) represents the golden ratio, an important mathematical constant approximately equal to 1.618. This ratio is often found in nature, art, and architecture, where it is believed to create aesthetically pleasing proportions. The golden ratio can be derived from the Fibonacci sequence, where the ratio of consecutive numbers approaches φ as the sequence progresses. In addition to its mathematical significance, φ has applications in various fields, including design, photography, and finance. Artists like Leonardo da Vinci and architects such as Le Corbusier have utilized the golden ratio to enhance the beauty and harmony of their works.