freebsd-ports/math/iml/pkg-descr
Thierry Thomas 8565528d22 Adding IML - Integer Matrix Library.
To be used by SageMath.
2020-04-03 16:06:10 +00:00

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IML is a free library of C source code which implements algorithms for computing
exact solutions to dense systems of linear equations over the integers.
Currently, IML provides the following functionalities:
- Nonsingular rational system solving: compute the unique rational solution X
to the system AX=B, where A and B are integer matrices, A nonsingular.
- Compute the right nullspace or kernel of an integer matrix.
- Certified linear system solving: compute a minimal denominator solution x to
a system Ax=b, where b is an integer vector and A is an integer matrix with
arbitrary shape and rank profile.
In addition, IML provides some low level routines for a variety of mod p matrix
operations: computing the row-echelon form, determinant, rank profile, and
inverse of a mod p matrix. These mod p routines are not general purpose; they
require that p satisfy some preconditions based on the dimension of the input
matrix (usually p should be prime and should be no more than about 20 bits
long).
WWW: https://cs.uwaterloo.ca/~astorjoh/iml.html