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Student[NumericalAnalysis][LeadingPrincipalSubmatrix] - return a leading submatrix of a square matrix
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Calling Sequence
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LeadingPrincipalSubmatrix(A,n)
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Parameters
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A
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Matrix; a square matrix
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n
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posint; indicates the sub-level of leading principal submatrix
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Description
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The LeadingPrincipalSubmatrix command returns the n-th leading principal submatrix of A.
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Examples
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![with(Student[NumericalAnalysis])](/support/helpjp/helpview.aspx?si=5008/file05090/math70.png)
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![A := Matrix([[1, 4, 7, 10], [4, 5, 8, 6], [7, 8, 10, 5], [5, 3, 5, 8]])](/support/helpjp/helpview.aspx?si=5008/file05090/math74.png)
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![A := Matrix([[1, 4, 7, 10], [4, 5, 8, 6], [7, 8, 10, 5], [5, 3, 5, 8]])](/support/helpjp/helpview.aspx?si=5008/file05090/math77.png)
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![Matrix([[1, 4, 7], [4, 5, 8], [7, 8, 10]])](/support/helpjp/helpview.aspx?si=5008/file05090/math84.png)
| (2) |
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![Matrix([[1, 4], [4, 5]])](/support/helpjp/helpview.aspx?si=5008/file05090/math91.png)
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![Matrix([[1]])](/support/helpjp/helpview.aspx?si=5008/file05090/math98.png)
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