SYMSQR Function

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SYMSQR Function

converts a square matrix to a symmetric matrix

SYMSQR( matrix)

where matrix is a square numeric matrix.

The SYMSQR function takes a square numeric matrix (size n ×n) and compacts the elements from the lower triangle into a column vector (n(n+1)/2 rows). The matrix is not checked for actual symmetry. Therefore, the statement

   sym=symsqr({1 2, 3 4});

sets

                SYM           3 rows      1 col     (numeric)

                                          1
                                          3
                                          4

Note that the 2 is lost since it is only present in the upper triangle.

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