Homonym: ϕ (Phi)
The symbol "ϕ" (phi) represents the golden ratio, an important mathematical constant approximately equal to 1.618. It is often denoted by the Greek letter phi and arises in various areas of mathematics, art, and nature. The golden ratio is defined algebraically as the positive solution to the equation x^2 = x + 1.
In addition to its mathematical significance, the golden ratio is frequently observed in architecture, design, and nature. For example, it can be found in the proportions of the Parthenon in Greece and in the arrangement of leaves around a stem in plants. This ratio is often associated with aesthetic beauty and harmony.