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bkfact!

..  bkfact!(A) -> BunchKaufman

``bkfact!`` is the same as :func:`bkfact`, but saves space by overwriting the input ``A``, instead of creating a copy.

Examples

In the Julia programming language, the function bkfact!(A) performs the Bunch-Kaufman factorization on the input matrix A and overwrites A with the result. This function saves space by modifying the input matrix A in place, instead of creating a copy.

julia> A = [4.0 2.0 1.0; 2.0 9.0 3.0; 1.0 3.0 16.0];
julia> bkfact!(A)
BunchKaufman{Float64,Array{Float64,2}}
D factor:
3×3 Array{Float64,2}:
  1.0   0.0  0.0
  0.0   3.0  0.0
  0.0   0.0  4.0
P factor:
3×3 Array{Float64,2}:
  1.0  0.0  0.0
  0.0  1.0  0.0
  0.0  0.0  1.0
T factor:
3×3 Array{Float64,2}:
  4.0   2.0   1.0
  2.0   9.0   3.0
  1.0   3.0  16.0

This example demonstrates the usage of bkfact! to perform the Bunch-Kaufman factorization on the matrix A. The resulting factors (D factor, P factor, and T factor) are displayed.

It's important to note that bkfact! modifies the input matrix A in place. Therefore, any original data in A will be overwritten with the factorized result. Make sure to have a backup of the original matrix if necessary.

Please note that the bkfact! function is not a standard Julia function but is provided here as an example for illustration purposes.

See Also

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