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If the first nonzero component of the vector difference A-B is >0, then A≻B. If the first nonzero component of A-B is <0, then A≺B.

Vector subtraction is the process of taking a vector difference, and is the inverse operation to vector addition.

The symbol v variously means "disjunction" (i.e., OR in logic) or "join" (for a lattice).

Oriented in an up-down position.

A function f(x) has a vertical tangent line at x_0 if f is continuous at x_0 and lim_(x->x_0)f^'(x)=+/-infty.

The generalization of a Voronoi polygon to n dimensions for n>2.

Solving the wave equation on a disk gives a solution in terms of Bessel functions.

A surface represented parametrically by elliptic functions.

A finite division algebra is a field.

A function w(x) used to normalize orthogonal functions int[f_n(x)]^2w(x)dx=N_n.