To write pi in LaTeX, you can use the command pi within a math environment like this: pi.
Most mathematicians use LaTeX, which enables you to enter pi by typing \pi in so called math-mode.
Pi is approximately 3.1415
a number
Yes it is. There is so called MacTeX distribution which brings all software required to write LaTeX documents on Mac and manage your LaTeX packages.
pi is the ratio between the radius and the circumference of the circle if the radius is 1 the circumference is pi
-- Write down (pi) with as many of its decimal places as you choose to use -- Write '8' under it. -- Carry out the multiplication.
The first to find the value in pi were the Babylonians and Egyptians.
( pi ) x ( 3/pi ) = 3
Pi written as an improper fraction is 22/722 over 7
No, the Greeks did.
3.14159
3.141592