hrmt
====

gcd of polynomials



Calling Sequence
~~~~~~~~~~~~~~~~


::

    [pg,U]=hrmt(v)




Arguments
~~~~~~~~~

:v row of polynomials i.e. `1`x `k` polynomial matrix
: :pg polynomial
: :U unimodular matrix polynomial
:



Description
~~~~~~~~~~~

`[pg,U]=hrmt(v)` returns a unimodular matrix `U` and `pg` = gcd of row
of polynomials `v` such that `v*U = [pg,0]`.



Examples
~~~~~~~~


::

    x=`poly`_(0,'x');
    v=[x*(x+1),x^2*(x+1),(x-2)*(x+1),(3*x^2+2)*(x+1)];
    [pg,U]=hrmt(v);U=`clean`_(U)
    `det`_(U)




See Also
~~~~~~~~


+ `gcd`_ gcd calculation
+ `htrianr`_ triangularization of polynomial matrix


.. _gcd: gcd.html
.. _htrianr: htrianr.html