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MATRIX DIMENSION [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-01-26

English

Subject field(s)
  • Mathematics
  • Econometrics
DEF

A matrix all of whose entries are zero.

CONT

A null matrix is a matrix in which every element of the matrix equals 0. It can be of any dimension. Addition and subtraction of a null matrix leaves the original matrix unchanged, multiplication with a null matrix results in another null matrix.

OBS

A zero matrix is sometimes called a trivial matrix. A matrix which has at least one nonzero entry is called a nontrivial matrix or nonzero matrix. (It is not required that all entries be nonzero, just that at least one of them is nonzero!)

OBS

zero matrix: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Mathématiques
  • Économétrie
DEF

Matrice dont tous les coefficients sont nuls.

OBS

matrice nulle : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 1

Record 2 1997-04-15

English

Subject field(s)
  • Ecosystems
CONT

Nutrient cycling is an ecosystem level function because nutrients are essential to organisms and because of the pervasive and complex pathways and geochemical processes involved. The term "biogeochemical" cycles has been coined to describe the nature of this phenomenon. Its pervasive and essential presence is an explicit example of the fifth inseparable dimension of biodiversity, namely the abiotic biodiversity matrix.

French

Domaine(s)
  • Écosystèmes
CONT

Les indicateurs les plus critiques de l'«état de la biodiversité» doivent nous renseigner sur la biodiversité en soi et non pas uniquement sur les tendances en matière de substances chimiques toxiques et de qualité de l'eau, des sols ou de l'air, même si ces paramètres peuvent nous renseigner sur l'état de la matrice abiotique de la biodiversité.

Spanish

Save record 2

Record 3 1988-01-19

English

Subject field(s)
  • Environmental Studies and Analyses
DEF

... a large table, with project activities and events listed along one dimension and specific environmental components along the other. If an interaction is expected between a particular project activity or event and a specific environmental component(e. g., a species), then the appropriate box in the matrix is marked. Once the matrix is complete, it becomes clear that certain project activities and environmental components are severely implicated.

French

Domaine(s)
  • Études et analyses environnementales

Spanish

Save record 3

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