Professor of Mathematics (Emeritus)

Loyola Marymount University

Los Angeles, CA

This package performs multiple-precision exact rational arithmetic.

The basic arithmetic operations are provided, along with assignments and

logical comparisons. The functions provided are ones where the function

value is an exact rational for all rational input values.

One of the primary uses of the package is to compute exact rational solutions to linear

systems of equations or exact rational inverse matrices, so routines are provided for

those operations.

See the user manual below for a list of available operations for FM rational numbers.

The program SampleFMrational.f95 below gives examples of using FM for rational calculations.

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The actual files shown on this page are in this archive that contains all the FM files from this

website: FM_files.zip

The individual file pointers here display as pdf files for browsing. The longer files are cut

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fm_rational.f95

Subroutine library for multiple-precision rational operations. 9,651 lines of code

TestFMrational.f95

Checks several operations for each of the fm_rational routines. 9,573 lines of code

SampleFMrational.f95

Small sample program using fm_rational. 733 lines of code

SampleFMrational.chk

Expected output file from SampleFMrational.f95. 398 lines

FM_Rational_User_Manual.txt

User's guide for the package, along with a list of the files, and an example set of

compiler/linker commands for building the programs. 112 lines

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