The known fragrancy notes are: mandarin, bergamot, myrrh, cedar and patchouli.
Pi is a mathematic constant often used in mathematics and physics. An irrational number. can be defined in Euclid's pyramid as a relation between volume and diameter of a circle. is also known as Archimedes' constant and Ludolf's number. The name Pi denotes perimetros, which means 'to measure around' when translated from Greek.
Givenchy combined Pi with futuristic Neo from Matrix and reached Givenchy's constant: 'to smell well everywhere'!