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 Republicans hardly need a party and the cumbersome cadre of low-level officials that form one; they have a bankroll as large as the Pentagon’s budget, dozens of fatted PACs, and the well-advertised support of the Christian deity.”
—Barbara Ehrenreich (b. 1941)