Coordinates
Ordered Pair
Ordered Triple
ntuple
On the coordinate plane, the
pair of numbers giving the location of a point (ordered
pair). In threedimensional
coordinates, the triple of numbers
giving the location of a point (ordered triple). In
ndimensional
space, a sequence of n numbers
written in parentheses.
Ordered pair: 
Two numbers written in the form (x, y). 
Ordered triple: 
Three numbers written in the form (x, y, z). 
ntuple: 
n numbers written in the form (x_{1},
x_{2},
x_{3}, . . . , x_{n}). 
See
also
Analytic geometry
