issmall: Is a form zero to within numerical precision?
In stokes: The Exterior Calculus

issmall

R Documentation

Is a form zero to within numerical precision?

Description

\loadmathjax

Given a \mjseqnk-form, return TRUE if it is “small”

Usage

issmall(M, tol=1e-8)

Arguments

`M`	Object of class `kform` or `ktensor`
`tol`	Small tolerance, defaulting to `1e-8`

Value

Returns a logical

Author(s)

Robin K. S. Hankin

Examples


o <- kform_general(3,2,runif(3))
M <- matrix(rnorm(9),3,3)

discrepancy <- o - pullback(pullback(o,M),solve(M))

discrepancy # print method might imply coefficents are zeros

issmall(discrepancy)  # should be TRUE
is.zero(discrepancy)  # might be FALSE

stokes documentation built on Aug. 19, 2023, 1:07 a.m.

stokes index

Package overview README.md kinner `contract()` and related functions in the `stokes` package Exterior calculus with R Function `vector_cross_product()` in the `stokes` package Function `volume()` in the Stokes package Objects `dx`, `dy`, and `dz` in the `stokes` package Objects `ex`, `ey`, and `ez` in the `stokes` package The `Alt()` function in the `stokes` package The `dovs()` function in the `stokes` package: the dimension of the underlying vector space The `hodge()` function in the `stokes` package The `inner()` function in the `stokes` package The `kinner()` function in the `stokes` package `wedge()` and related functions in the `stokes` package

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