PolynomF: as.function.polynom – R documentation

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as.function.polynom

Coercion to function

Description

PolynomF objects ARE functions, but this coercion method creates from a polynomial object a pure function with the coefficients fully exposed in the code and which evaluates the polynomial more efficiently.

Usage

## S3 method for class 'polynom'
as.function(x, variable = "x", ...)

## S3 method for class 'polylist'
as.function(x, ...)

Arguments

`x`	A polynomial object
`variable`	Character string: what variable name should be used?
`...`	Additional arguments

Value

An explicit R function evaluating the polynomial

Examples

p <- poly_from_zeros(-2:3)
p
as.function(p)

PolynomF

Polynomials in R

v2.0-3

GPL-2

Authors

Bill Venables, with contribution by Kurt Hornik and Georgi Boshnakov

Initial release

2020-02-04