Matricies Flashcards

1
Q

What does confromable mean

A

When two matrices can multiply with each other and only happened if the number of colour sizes in first matches number of rows in second

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2
Q

What is associativity notation

A

(X * y) * Z= x * (y*z)

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3
Q

Commutativity notation ?

A

X* y= y*x

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4
Q

Distributive qualities

A

X ( P+ R) = XP + XR

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5
Q

Thus what are the matrix properties for associativity

A

Matrix multiplication is aaositive so A (Px B) = (AXP) XB

And addition but not subtraction

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6
Q

Commutative rules

A

Matrix mukitplications IS NOT
AB isn’t Ba
Unless one is identify or 0
Neither is subtraction but addtiion is

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7
Q

And distributive quality?

A

Matrix multiplication is distruibituve

Thus x (P+q) = XP + XQ

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8
Q

All rules basically

A

Addition is always yes for associative commutative, subtraction no for associative and comuutive

MULITPLICATION IS ASSOCIATIVE, BUT NOT COMMUTATIVE
And that multiplication is DISTRUBUTUTIVE !

Associative x (pXy) = (xXP ) xy
Commutative xy = yx
Distributive x (P+y) = Xp + Xy

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