If n 3 then direct evaluation of takes 12 multiplications


Question: If n = 3, then direct evaluation of takes 12 multiplications and 5 additions. How many multiplications and additions does the evaluation of a determinant of order 3 take if expansion by minors is used? How many multiplications/divisions and additions are necessary for the same task if elimination is used?

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Mathematics: If n 3 then direct evaluation of takes 12 multiplications
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