search for: odepack

Displaying 7 results from an estimated 7 matches for "odepack".

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2003 May 27
3
The Wrong Choice: Locked in by license restrictions
A colleague pointed me to this article advocating R as a Matlab substitute. Here is the link (deliberately on two lines: http://searchenterpriselinux.techtarget.com/ originalContent/0,289142,sid39_gci902076,00.html I'm not a Matlab user, but I understand that it provides a nice front end to the Linpack collection of numerical linear algebra routines. My friend and I wonder if R can really
2000 Nov 17
1
Ordinary differential equations in R?
Is there any R code available for solving ODE's? I am considering building an interface to ODEPACK, but don't want to duplicate any existing effort. -- Tom Wainwright NOAA/NMFS/NWFSC 2030 S Marine Science Dr Newport, OR 97365 USA thomas.wainwright at noaa.gov -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac....
2006 Nov 21
1
f2c to achieve reentrancy in odesolve?
I am beginning a much-delayed update of odesolve to include several ordinary differential equation solvers from the Livermore package ODEPACK. These are much-used and reliable Fortran codes, and I plan (as I did for lsoda in the current odesolve package) to make as few changes as possible to the Fortran 77 code. However, recently someone wanted to make nested calls to lsoda, which will not work, because Fortran is not generally reentra...
2009 Jun 29
0
new version of package deSolve on CRAN
...N. deSolve, the successor of R package odesolve, is a package to solve initial value problems (IVP) of: - ordinary differential equations (ODE), - differential algebraic equations (DAE) and - partial differential equations (PDE). The implementation includes stiff integration routines based on the ODEPACK Fortran codes (Hindmarsh 1983). It also contains fixed and adaptive time step Runge-Kutta solvers and the Euler method. Main improvements: - new introductory tutorial (vignette) "Solving initial value differential equations in R", - all integrators are now implemented in compiled lang...
2009 Jun 29
0
new version of package deSolve on CRAN
...N. deSolve, the successor of R package odesolve, is a package to solve initial value problems (IVP) of: - ordinary differential equations (ODE), - differential algebraic equations (DAE) and - partial differential equations (PDE). The implementation includes stiff integration routines based on the ODEPACK Fortran codes (Hindmarsh 1983). It also contains fixed and adaptive time step Runge-Kutta solvers and the Euler method. Main improvements: - new introductory tutorial (vignette) "Solving initial value differential equations in R", - all integrators are now implemented in compiled lang...
2000 Jul 26
4
differential equations
Hi, Does somebody knows of the existence of a library of functions for solving differential equations, I need a solver for a system of non linear first order differential equations. I think there was something in IMSL but that was a long time ago and probably there are some new algorithms in the new now. Thanks for any pointers. . R. Heberto Ghezzo Ph.D. Meakins-Christie Labs McGill
2005 Aug 31
5
"best" c++ matrix library?
Hi folks, I am planning to write some more time-consuming matrix manipulations in c++. What is the experience with the existing c++ matrix libraries? Do you have some recommendations? Are some libraries more compatible with R than the others? All suggestions welcome! Best, Ott