Abbreviated Form
If several sets are being multiplied together, e.g. X1, X2, X3, …, then some authors choose to abbreviate the Cartesian product as simply ×Xi.
Read more about this topic: Cartesian Product
Famous quotes containing the word form:
“The sense of an entailed disadvantage—the deformed foot doubtfully hidden by the shoe, makes a restlessly active spiritual yeast, and easily turns a self-centred, unloving nature into an Ishmaelite. But in the rarer sort, who presently see their own frustrated claim as one among a myriad, the inexorable sorrow takes the form of fellowship and makes the imagination tender.”
—George Eliot [Mary Ann (or Marian)