TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A matrix all of whose entries are zero.  3, record 1, English, - zero%20matrix

Record number: 1, Textual support number: 1 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.  4, record 1, English, - zero%20matrix

Record number: 1, Textual support number: 1 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!)  3, record 1, English, - zero%20matrix

Record number: 1, Textual support number: 2 OBS

zero matrix: term used at Natural Resources Canada - Earth Sciences Sector.  5, record 1, English, - zero%20matrix

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Matrice dont tous les coefficients sont nuls.  2, record 1, French, - matrice%20nulle

Record number: 1, Textual support number: 1 OBS

matrice nulle : terme en usage à Ressources naturelles Canada-Secteur des sciences de la Terre.  3, record 1, French, - matrice%20nulle

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

The ratio of the applied excitation force phasor to the resulting velocity phasor with all other connection points of the system free, i.e. having zero restraining forces. Free impedance is the arithmetic reciprocal of a single element of the mobility matrix.  1, record 2, English, - free%20impedance

Record number: 2, Textual support number: 1 OBS

Historically, often no distinction has been made between blocked impedance and free impedance. Caution should, therefore, be exercised in interpreting published data. While experimentally determined free impedances could be assembled into a matrix, this matrix would be quite different from the blocked impedance matrix, resulting from mathematical modelling of the structure and, therefore, would not conform to the requirements for using mechanical impedance in a overall theoretical analysis of the system.  1, record 2, English, - free%20impedance

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Rapport du vecteur tournant de la force d’excitation au vecteur tournant de la vitesse résultante, tous les autres points de connexion du système étant libres, c'est-à-dire ayant des forces de contrainte nulle. L'impédance libre est l'inverse arithmétique d’un élément unique de la matrice de mobilité.  1, record 2, French, - imp%C3%A9dance%20libre

Record number: 2, Textual support number: 1 OBS

Par le passé, on a rarement fait la distinction entre impédance bloquée et impédance libre. Il faudrait donc faire attention lorsqu’on interprète les données publiées. Alors que les impédances libres déterminées expérimentalement pourraient être regroupées en une matrice, celle-ci serait tout à fait différente de la matrice d’impédance bloquée résultant de la modélisation mathématique de la structure et ne serait donc pas conforme aux exigences portant sur l’utilisation de l’impédance mécanique dans une analyse théorique globale du système.  1, record 2, French, - imp%C3%A9dance%20libre

Record 2,  Textual support,  Spanish