Changes in version 2.3 (2019-05-30)                   

    o   removed various Lapack routines that are now included in the R Lapack sources.

    o   changed dependency on the version of R (>= 3.5.0)

                  Changes in version 2.2 (2018-05-17)                   

    o   changed package documentation .Rd to update metadata

    o   updated lapack routines to version 3.8.0; many Fortran routines unchanged from Lapack 3.7.0.
	Changes are minimal.

                  Changes in version 2.1 (2017-08-22)                   

    o   clarification in documentation of geigen about when the second matrix must be positive definite.

    o   corrected documentation of gqz; matrices need not be positive definite.

                  Changes in version 2.0 (2017-02-16)                   

    o   register native routines in dll

    o   added NeedsCompilation field to DESCRIPTION

    o   use subroutines from Lapack 3.7.0 (no differences in actual code)

                 Changes in version 1.9.2 (2016-09-05)                  

    o   in all files src/x*.f obsolescent Fortran character* declarations replaced

    o   in all files src/x*.f use <double complex> instead of <complex*16> but
	Lapack routines using <complex*16> have not been changed

                 Changes in version 1.9.1 (2016-08-07)                  

    o   moved zheg* routines to separate file

    o   updated Lapack routines to version 3.6.1

    o   documentation tweaks

                  Changes in version 1.9 (2016-01-07)                   

    o   update to routines from Lapack 3.6.0 and use new gsvd routines

    o   Lapack zzgsvd3 and zzgsvp3 from svn revision 1664 and 1671

                  Changes in version 1.8 (2015-11-02)                   

    o   gsvd now also handles complex matrices

                  Changes in version 1.7 (2015-10-15)                   

    o   documentation tweaks

    o   gsvd does not handle complex matrices

    o   removed CITATION and let it be auto generated (to get details correct)

                  Changes in version 1.6 (2015-07-16)                   

    o   added a Generalized Singular Value Decomposition of a matrix pair

    o   documentation tweaks

                  Changes in version 1.5 (2015-02-12)                   

    o   change to titlecase in several places and update CITATION

    o   additional comments in cmplxdiv.R about weird complex division on some systems

                  Changes in version 1.4 (2014-08-18)                   

    o   replaced zgetc2 in zggesall.f with Lapack 3.5.0 version

    o   additional tests

    o   fix some ftnchek warning/error messages

                  Changes in version 1.3 (2013-08-27)                   

    o   added function for computing generalized eigenvalues from a generalized Schur decomposition

    o   introduced S3 classes and methods for calculating generalized
	eigenvalues from the generalized Schur decomposition

    o   added Copyright field in DESCRIPTION

    o   documentation tweaks and clarifications

                  Changes in version 1.2 (2013-06-18)                   

    o   added Lapack Licence

    o   added alpha and beta to return list of geigen() and gqz() for safe calculation of generalized eigenvalues

    o   improved sorting eigenvalues for singular matrix B

    o   improved calculation of eigenvalues for singular B matrix in geigen()

    o   detailed Lapack error/informative messages

    o   option 'R' in gqz() didn't function correctly.
	Corrected errors and now uses a tolerance for testing zero imaginary part.

                  Changes in version 1.1 (2013-05-23)                   

    o   corrected error message in gqz()

    o   stricter test of sorting for gqz()

    o   modified all intermediate Fortran subroutines to have integer arguments
	which are transferred to character*1 variables for calling the actual Lapack subroutines
	since on some platforms the Fortran runtime did not accept character in routines called by R

    o   renamed src/xdgg.f to src/xdggev.f

                  Changes in version 1.0 (2013-05-16)                   

    o   initial version