Software for accurate and efficient Givens rotations


  • David Bindel
  • James Demmel
  • W. Kahan
  • Osni Marques
  • Background

    This page contains software implementing accurate and efficient Givens rotations as specified in Chapter 2 of the BLAS Technical Forum Standard.

    Preliminary documentation for this software is located in the technical report "On computing Givens rotations reliably and efficiently" (pdf version). Final documentation will be in a paper to appear in ACM Transactions on Mathematical Software.


  • slartg.f (real Givens rotations)
  • clartg.f (complex Givens rotations)