combinepdf-min-0425.pdf

# combinepdf-min-0425.pdf - > > 23 3 >)7 I>I> >)I> 23> 33 23>...

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Unformatted text preview: >> >> 23'} 3*) >> )7? )) I>I> >> )I> 23>) 33') )) 23>) 3*) 3r) 3*) )I> >> 3*) 4 5 6; 7 8 9] Z an alternate way of writing the above A=[1,2,3;4,5,6; 7,8,9] Z another alternate — Z the ... indicates ”continued on next line" A’ Z transpose of matrix A 3.1*A Z scalar multiple of A A/2 Z same as 0.5 * A A(2,3) Z the entry in A in location (row) 2, (column) 3, i.e 6 A(1:2,[1 3]) Z the entries in A which are in rows 1 to 2 and columns 1 and 3 A(:,2)=[4;2;1] Z replace column 2 (all rows) by the column vector B=rand(3,3) Z B is a random 3 by 3 matrix (entries between 0 an 1) A+B Z sum of same sized matrices A and B Z MATLAB has the following matrix operators that will be considered later A*B Z matrix multiplication of A by B A“5 Z 5th power of matrix A A/B Z right division of A by B B\A Z left division of A by B Z MATLAB also allow the following array operations which have no equivalent in Maths A.*B Z multiply the corresponding entries together ...
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