extendr_api::prelude::sparse::linalg::qr

Function column_counts_aat_req

pub fn column_counts_aat_req<I>(
    nrows: usize,
    ncols: usize,
) -> Result<StackReq, SizeOverflow>
where
    I: Index,
Expand description

Computes the size and alignment of the workspace required to compute the column counts of the Cholesky factor of the matrix $A A^H$, where $A$ has dimensions (nrows, ncols).