Venn Diagram

Diagrams that show all hypothetically possible logical relations between a finite collection of sets. Venn diagrams were invented around 1880 by John Venn. A Venn diagram is constructed with a collection of simple closed curves drawn in the plane. The principle of these diagrams is that classes or sets be represented by regions in such relation to one another that all the possible logical relations of these classes can be indicated in the same diagram. That is, the diagram initially leaves room for any possible relation of the classes, and the actual or given relation, can then be specified by indicating that some particular region is null or is not null. Venn diagrams normally consist of overlapping circles.

SI Prefix (Système International d’Unités)

A name or associated symbol that precedes a unit of measure:

1024 yotta (Y)
1021 zetta (Z)
1018 exa (E)
1015 peta (P)
1012 tera (T)
109 giga (G)
106 mega (M)
103 kilo (k)
102 hecto (h)
101 deca (da)
10–1 deci (d)
10–2 centi(c)
10–3 milli (m)
10–6 micro (µ)
10–9 nano (n)
10–12 pico (p)
10–15 femto (f)
10–18 atto (a)
10–21 zepto (z)
10–24 yocto (y)

http://www.bipm.org/en/si/prefixes.html

Floating Point Operations Per Second (FLOPS)

A measure of a computer's performance; similar to instructions per second.

Cartesian Product

A direct product of sets. For two sets X and Y, the Cartesian Product is the set of all possible ordered pairs whose first component is a member of X and whose second component is a member of Y.

For example, the Cartesian product of the thirteen-element set of standard playing card ranks {Ace, King, Queen, Jack, 10, 9, 8, 7, 6, 5, 4, 3, 2} and the four-element set of card suits {♠, ♥, ♦, ♣} is the 52-element set of playing cards {(Ace, ♠), (King, ♠), ..., (2, ♠), (Ace, ♥), ..., (3, ♣), (2, ♣)}. The Cartesian product has 52 elements because that is the product of 13 times 4.

René Descartes