lapack_lu_f64

void lapack_lu_f64(const double * A, int n, int * ipiv, double * L_out, double * U_out, int * info)

Double-precision LU decomposition split into separate L and U. See lapack_lu_f32; uses dgetrf_.

References

LAPACK dgetrf_.

Aconst double*

Row-major

n \times n

input.

nint

Side length.

ipivint*

1-based pivot indices, length

n

L_out, U_outdouble*

Receive the

L

and

U

factors.

infoint*

LAPACK status word.

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void lapack_lu_f64(const double * A, int n, int * ipiv, double * L_out, double * U_out, int * info)