r8lib


r8lib, a FORTRAN90 code which contains a number of utility routines for "R8" or "double precision real" arithmetic.

Licensing:

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

Languages:

r8lib is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and an Octave version and a Python version and an R version.

Related Data and Programs:

C8LIB, a FORTRAN90 code which implements certain elementary functions for "C8" or double precision complex variables;

I4LIB, a FORTRAN90 code which contains many utility routines, using "I4" or "single precision integer" arithmetic.

I8LIB, a FORTRAN90 code which contains many utility routines, using "I8" or "double precision integer" arithmetic.

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.

r8lib_test

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.

References:

  1. Thomas Cormen, Charles Leiserson, Ronald Rivest,
    Introduction to Algorithms,
    MIT Press, 2001,
    ISBN: 0262032937,
    LC: QA76.C662.
  2. Albert Nijenhuis, Herbert Wilf,
    Combinatorial Algorithms for Computers and Calculators,
    Second Edition,
    Academic Press, 1978,
    ISBN: 0-12-519260-6,
    LC: QA164.N54.

Source Code:


Last revised on 11 September 2020.