Related icons are the icons with matching tags, as well as all alphabet icons
. All icons are in the same flat style. You can either download free PNG icons or buy SVG vectors
Idea of Pi Icon
Pi, the mathematical symbol for the number 3.14 used heavily in trigonometry. A single horizontal line, with two vertical lines stretching underneath, and curving slightly outward from each other.
Pi and other 89,000 icons from Icons8 icon pack follow the visual guidelines of the operating systems: Windows, iOS, Android KitKat, and Material. PNG format is free up to 100x100 px.