r83


r83, a FORTRAN90 code which carries out some basic linear algebra operations on R83 matrices (real 64 bit precision tridiagonal 3xN format).

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

r83 is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.

Related Data and Programs:

r83_test

R8COL, a FORTRAN90 code which contains utility routines for R8COL's, that is, double precision real MxN arrays, considered as N column vectors, each of length M. The data may be thought of as a matrix of multiple columns, and many operations will be carried out columnwise.

R8GE, a FORTRAN90 code which contains linear algebra routines for R8GE matrices (real, 64 bit, General format).

R8LT, a FORTRAN90 code which contains linear algebra routines for R8UT matrices (real, 64 bit, lower triangular format).

R8ROW, a FORTRAN90 code which contains utility routines for R8ROW's, that is, double precision real MxN arrays, considered as M row vectors, each of length N. The data may be thought of as a matrix of multiple rows, and many operations will be carried out rowwise.

R8UT, a FORTRAN90 code which contains linear algebra routines for R8UT matrices (real, 64 bit, upper triangular format).

Source Code:


Last revised on 28 January 2020.