2010 | OriginalPaper | Buchkapitel
What Are Matrices
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
In real life, a matrix is a rectangular array with prescribed numbers
n
of rows and
m
of columns (
n
×
m
matrix). To make this array as clear as possible, one encloses it between delimiters; we choose parentheses in this book. The position at the intersection of the
i
th row and
j
th column is labeled by the pair (
i
,
j
). If the name of the matrix is
M
(respectively,
A
,
X
, etc.), the entry at the (
i
,
j
)th position is usually denoted
m
i
j
(respectively,
a
i
j
,
x
i
j
). An entry can be anything provided it gives the reader information. Here is a the real-life example.