scipy.linalg.lapack.dlarfg#

scipy.linalg.lapack.dlarfg(n, alpha, x, incx=1, overwrite_x=0) = <flapack function dlarfg>#

Generate an elementary reflector (LAPACK dlarfg).

Produces the H with H @ [alpha, x] == [beta, 0], described by the returned alpha (which becomes beta), x and tau.

Parameters:

nint: Order of the reflector, at least 1.
alphafloat: The leading entry of the vector to reflect.
xndarray: The remaining entries, 1 + (n - 2) * abs(incx) of them.
incxint, optional: Stride through x. Default is 1.
overwrite_xint, optional: If nonzero, x may be overwritten in place. Default is 0.

Returns: