Greek letters\phi

\phiSymbol

The ϕ symbol (Greek phi symbol, U+03D5), written as \phi in LaTeX math mode.

\phi

Topic: Greek letters
Available in: base
Allowed mode: math
Frequency: 5.41% of corpus formulasrank 18 of 474
Glyph: ϕ
Unicode: U+03D5 · GREEK PHI SYMBOL

Common tasks#

How to write a Greek phi#

\phi

How to write an Euler totient#

\phi is the straight glyph; \varphi is the loopy variant used for totients.

\varphi(n)

How to write a golden-ratio phi#

\phi=\frac{1+\sqrt{5}}{2}

In TeXForm#

TeXForm parses this entry as a character leaf mapped to U+03D5 (GREEK PHI SYMBOL).

In Greek letters54

All 54 in Greek letters