isUnivariate {qspray}

Whether a 'qspray' is univariate

Description

Checks whether a qspray object defines a univariate polynomial.

Usage

## S4 method for signature 'qspray'
isUnivariate(x)

Arguments

x

a qspray object

Value

A Boolean value.

Note

It is considered that a constant qspray is univariate, and that the qspray object y^2+1 where y=qlone(2) is not univariate, although only one variable is present (see the note in the documentation of numberOfVariables).