Pi (symbol Pi)

g (multi-tap key)

p ≈ 3.14159265359 for calculations.

p ≈ 3.141592654 for display in Float mode.

Example

p	2 V g <
	r

Problem

What is the area of a circle if the radius is 12 cm?

Reminder: A = p×r2

g V 12 F < r

The area of the circle is 144 p square cm. The area of the circle is approximately 452.4 square cm when rounded to one decimal place.