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In a compact single dimensional array representation for lower triangular matrices (i.e. all the elements above the diagonal are zero) of size n x n, non-zero elements (i.e. elements of the lower triangle) of each row are stored one after another, starting from the first row, the index of the (i, j)th element of the lower triangular matrix in this new representation is 

  • a)
    i + j

  • b)
    i + j - 1

  • c)
    j + i(i-1)/2 

  • d)

Correct answer is option 'C'. Can you explain this answer?
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In a compact single dimensional array representation for lower triangular matrices (i.e. all the elements above the diagonal are zero) of size n x n, non-zero elements (i.e. elements of the lower triangle) of each row are stored one after another, starting from the first row, the index of the (i, j)th element of the lower triangular matrix in this new representation isa)i + jb)i + j - 1c)j + i(i-1)/2d)Correct answer is option 'C'. Can you explain this answer?
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In a compact single dimensional array representation for lower triangular matrices (i.e. all the elements above the diagonal are zero) of size n x n, non-zero elements (i.e. elements of the lower triangle) of each row are stored one after another, starting from the first row, the index of the (i, j)th element of the lower triangular matrix in this new representation isa)i + jb)i + j - 1c)j + i(i-1)/2d)Correct answer is option 'C'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about In a compact single dimensional array representation for lower triangular matrices (i.e. all the elements above the diagonal are zero) of size n x n, non-zero elements (i.e. elements of the lower triangle) of each row are stored one after another, starting from the first row, the index of the (i, j)th element of the lower triangular matrix in this new representation isa)i + jb)i + j - 1c)j + i(i-1)/2d)Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a compact single dimensional array representation for lower triangular matrices (i.e. all the elements above the diagonal are zero) of size n x n, non-zero elements (i.e. elements of the lower triangle) of each row are stored one after another, starting from the first row, the index of the (i, j)th element of the lower triangular matrix in this new representation isa)i + jb)i + j - 1c)j + i(i-1)/2d)Correct answer is option 'C'. Can you explain this answer?.
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