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Earn +20 ptsQ: What is matrix multiplication about?
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What is the difference between scalar multiplication and matrix multiplication?
Matrix multiplication is when you multiply the numbers inside different matricies.[topleft#1]Xtopleft#2=top left topright#1XBottomleft=top right bottom left X Topleft=top left bottom rightX bottom right=bottom right Scalar multiplication A number out side a matrix multiplies all parts of the matrix
What is performing addition subtraction and scalar multiplication of matrices?
Matrix arithmetic
Is Multiplication of 2 X 2 matrices associative?
All matrix multiplications are associative Always .. .A+
What do you think the mapping rule is for a rotation of 270 degrees clockwise?
It is multiplication by the 2x2 matrix 0 1-1 0
What is the rule for 270 degree counter clockwise rotation?
The effect of the rotation is the same as that of a 90 degree clockwise rotation. In matrix notation, it is equivalent to [post-]multiplication by the 2x2 matrix: { 0 1 } {-1 0 }
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