2.1 Matrix Operations Flashcards

1
Q

diagonal matrix

A

a square n x n matrix whose nondiagonal entries are 0

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2
Q

two matrices are equal if

A

they have the same size and the corresponding entries are equal

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3
Q

sum A+B matrices

A

m x n matrix whose columns are the sums of the corresponding columns in A and B

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4
Q

scalar multiple rA

A

matrix whose columns are r times the corresponding columns in A

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5
Q

transpose

A

the matrix whose columns are formed from the corresponding rows of A

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