I8LIB
A Double Precision Integer Arithmetic Utility Library

I8LIB is a Python library which contains many utility routines for "I8" or "double precision integer" arithmetic.

Licensing:

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

Languages:

I8LIB 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:

C4LIB, a Python library which contains many utility routines, using "C4" or "single precision complex" arithmetic.

C8LIB, a Python library which contains many utility routines, using "C8" or "double precision complex" arithmetic.

I4LIB, a Python library which contains many utility routines using single precision integer (I4) arithmetic.

R4LIB, a Python library which contains many utility routines using single precision real (R4) arithmetic.

R8LIB, a Python library which contains many utility routines using double precision real (R8) arithmetic.

UNIFORM, a Python library which contains uniform random number generators (RNG's) for several arithmetic types.

Reference:

1. Milton Abramowitz, Irene Stegun,
   Handbook of Mathematical Functions,
   National Bureau of Standards, 1964,
   ISBN: 0-486-61272-4,
   LC: QA47.A34.
2. Thomas Cormen, Charles Leiserson, Ronald Rivest,
   Introduction to Algorithms,
   MIT Press, 2001,
   ISBN: 0262032937,
   LC: QA76.C662.
3. 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:

• i4vec_print.py, prints an I4VEC.
• timestamp.py, prints the current YMDHMS date as a timestamp;

Examples and Tests:

• i8lib_test.py, calls all the tests;
• i8lib_test.sh, runs all the tests;
• i8lib_test.txt, the output file;

You can go up one level to the Python source codes.