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Title Description
Deductive Logic Deductive Logic is employed before events have transpired, before the fact. Play_video
Degree, Polynomial The Degree of a polynomial is the order, or highest power (term) of the polynomial. Play_video
Determinant A Determinant is a number associated with a square matrix.
It may also be a cofactor, a number associated with a square array from a larger matrix.
Diagonal Matrix A square matrix with zero values everywhere except on the main diagonal (upper left to lower right) is termed a Diagonal Matrix. Play_video
Dimension, Matrix The Dimension of a matrix is its order, or size.
We label the order of a matrix by its number of rows then its number of columns.
A 4x3 matrix is read as "a four by three matrix" and has four rows and three columns.
Discontinuity When a function is literally not continuous because of a gap, a step, a hole, or any kind of "break" it is considered discontinuous. Play_video
Discrete Function When the inputs from the domain of the function are not smooth and continuous but rather incremental, the function is considered to be a Discrete Function. Play_video
Discriminant In the Quadratic Formula, the radicand (the business inside the square-root sign) is the Discriminant.
In general, a Discriminant provides algebraic information about the roots of polynomials.
Disjoint Disjoint sets have no common elements. Play_video
Divergent Geometric Progression An infinite geometric progression (or a significant portion of one) is termed Divergent when its common ratio has an absolute value less than or equal to -1, or greater than or equal to 1. Play_video
Dot Product A product of vector multiplication, the Dot Product is a scalar, which means it has magnitude only and not an associated direction.
The Dot Product does not result in another vector.

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