PolynomF: zap – R documentation

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zap

Remove minuscule coefficients

Description

A convenience function for setting polynomial coefficients likely to be entirely round-off error to zero. The decision is relegated to the function base::zapsmall, to which this is a front-end.

Usage

zap(x, digits = getOption("digits"))

## Default S3 method:
zap(x, digits = getOption("digits"))

## S3 method for class 'polynom'
zap(x, digits = getOption("digits"))

## S3 method for class 'polylist'
zap(x, digits = getOption("digits"))

## S3 method for class 'list'
zap(x, digits = getOption("digits"))

Arguments

`x`	A polynomial or polylist object
`digits`	As for `base::zapsmall`

Value

A polynomial or polylist object with minuscule coefficients set to zero.

Examples

(P <- poly_orth(-2:2, norm = FALSE))
zap(35*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

zap