Greek Small Letter Pi

π
Symbol Format Data
π Code Point
U+03C0
TeX
\pi
SVG

Usage

The Greek small letter (pi) is used in trigonometry as a constant to represent a half-rotation around a circle in radians. The value of is approximately and appears in many math formulas and expressions. Read more…

Related

The capital Greek letter Pi (Π) is used in algebra to represent the product operator. The product operator has three parts: the initial index value, an end value, and the expression being multiplied together.