Pi: May I have a large container of coffee?

Explanation

How to remember the value of pi: 3.14159265358...

The most common rhyme is to memorize a so-called "piem" (a wordplay on "pi" and "poem") in which the number of letters in each word is equal to the corresponding digit of π:

• Pie I wish I could determine pi
  Eureka, cried the great inventor
  Christmas pudding, Christmas pie
  Is the problem's very center.

Here is another well-known piem:

• Sir, I have a rhyme excelling,
  In mystic power and magic spelling,
  Celestial spirits elucidate,
  For my own problems can't relate.

Pi up to 1 million digits, take a look: http://www.piday.org/million/ (also available on t-shirts, etc.)

Information about Pi from Wikipedia:

The number π (/paɪ/) is a mathematical constant that is the ratio of a circle's circumference to its diameter, and is approximately equal to 3.14159. It has been represented by the Greek letter "π" since the mid-18th century, though it is also sometimes written as pi. π is an irrational number, which means that it cannot be expressed exactly as a ratio of two integers (such as 22/7 or other fractions that are commonly used to approximate π); consequently, its decimal representation never ends and never settles into a permanent repeating pattern. The digits appear to be randomly distributed, although no proof of this has yet been discovered. π is a transcendental number – a number that is not the root of any nonzero polynomial having rational coefficients. The transcendence of π implies that it is impossible to solve the ancient challenge of squaring the circle with a compass and straight-edge.

See also https://en.wikipedia.org/wiki/Piphilology

Alternative mnemonics

• How I need a drink, alcoholic in nature, after the tough chapters involving quantum mechanics
• How I need a drink, alcoholic of course, after the heavy chapters involving geodesy
• How I want a drink, alcoholic of course, after the heavy lectures involving quantum mechanics!
• How I wish I could calculate Pi
• How I wish I could recollect, of circle round, the exact relation Arkimedes (or Archimede) learned
• May I have a large container of coffee, cream and sugar?
• Sir, I know a rhyme excelling in mystic force and magic spelling. Celestial spirits elucidate, all my own striving can't relate
• The point I said a blind Bulgarian in France would know
• Yes, I have a number

Or should we use 'tau' (τ) from now on?

Math difficult? Not with these arithmetic mnemonics...