changeParameters

Replaces the parameters of a <code>symbolicQspray</code> polynomial
 (which are <code>qspray</code> objects) with some <code>qspray</code> polynomials.
 E.g. you have a polynomial with two parameters \(P_{a,b}(x)\) and you
 want the polynomial \(P_{a+1,b+1}(x)\) (see example).

Introduces the 'symbolicQspray' objects. Such an object
represents a multivariate polynomial whose coefficients are fractions of
multivariate polynomials with rational coefficients. The package
allows arithmetic on such polynomials. It is based on the 'qspray' and
'ratioOfQsprays' packages. Some functions for 'qspray' polynomials have
their counterpart for 'symbolicQspray' polynomials. A 'symbolicQspray'
polynomial should not be seen as a polynomial on the field of fractions
of rational polynomials, but should rather be seen as a polynomial with
rational coefficients depending on some parameters, symbolically
represented, with a dependence given by fractions of rational polynomials.

Stc3<a9>phane Laurent

symbolicQspray

Multivariate Polynomials with Symbolic Parameters in their
Coefficients

Stéphane Laurent

changeParameters function

<dl><dt>Qspray</dt>
<dd>a <code>symbolicQspray</code> polynomial</dd>
<dt>newParameters</dt>
<dd>a list containing at least <code>n</code> <code>qspray</code>
objects, or objects coercible to <code>qspray</code> objects, where <code>n</code> is
the number of parameters in the symbolic polynomial given in the
<code>Qspray</code> argument; if this list is named, then its names will be
used in the show options of the result</dd></dl>

Arguments

Change of parameters in a 'symbolicQspray' polynomial — changeParameters

<dl>

<dt>Qspray</dt>
<dd>a <code>symbolicQspray</code> polynomial</dd>


<dt>newParameters</dt>
<dd>a list containing at least <code>n</code> <code>qspray</code>
objects, or objects coercible to <code>qspray</code> objects, where <code>n</code> is
the number of parameters in the symbolic polynomial given in the
<code>Qspray</code> argument; if this list is named, then its names will be
used in the show options of the result</dd>

</dl>

changeParameters: Change of parameters in a 'symbolicQspray' polynomial

Description

Usage

Value

Arguments

See Also

Examples