inclass6-systems Applications of LU

# inclass6-systems Applications of LU - [1/7 Linear Algebra...

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3/15/2016 [1/7] Linear Algebra review: Rank and Singularity - In-class work: Applications of LU - RELATE 1/1 Linear Algebra review: Rank and Singularity Let be a matrix. Consider the following two statements: A: is singular. B: does not have full rank. Which of the following is true? A Rn×n A A Choice* A B A not B A B A not B None of these

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3/15/2016 [2/7] LU and row/column spaces - In-class work: Applications of LU - RELATE 1/1 LU and row/column spaces Suppose you have a matrix and its LU factorization . Which of the following is equal to the vector space spanned by the rows of ? A A=LU A Choice* The space spanned by the rows of . L The space spanned by the columns of . L The space spanned by the rows of . U The space spanned by the columns of . U
3/15/2016 [3/7] Forward substitution - In-class work: Applications of LU - RELATE 1/1 Forward substitution

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