rootSolve-package {rootSolve}R Documentation

Roots and steady-states

Description

Functions that:

(1) generate gradient and Jacobian matrices (full and banded),

(2) find roots of non-linear equations by the Newton-Raphson method,

(3) estimate steady-state conditions of a system of (differential) equations in full, banded or sparse form, using the Newton-Raphson method or by a dynamic run,

(4) solve the steady-state conditions for uni-and multicomponent 1-D and 2-D reactive transport models (boundary value problems of ODE) using the method-of-lines approach.

Details

Package: rootSolve
Type: Package
Version: 1.3
Date: 2009-01-31
License: GNU Public License 2 or above

rootSolve is designed for solving n roots of n nonlinear equations.

Author(s)

Karline Soetaert

See Also

uniroot.all, to solve all roots of one equation

multiroot, to solve n roots of n equations

steady, steady.1D, steady.2D general steady-state solvers

stode, stodes, steady-state solvers for full, banded or arbitrary sparse models (Newton-Raphson method)

runsteady steady-state solver by dynamically running to steady-state

package vignette rootSolve

Examples

## Not run: 

## run demos
demo("Jacobandroots")
demo("Steadystate")

## open the directory with documents
browseURL(paste(system.file(package="rootSolve"), "/doc", sep=""))

## main package vignette
vignette("rootSolve")
## End(Not run)

[Package rootSolve version 1.3 Index]