Mercurial > octave-nkf
view examples/code/oregonator.cc @ 20637:756b052037fb
avoid stepping beyond end of thspan in ode solvers
* scripts/ode/private/integrate_adaptive.m: make sure
not to step beyound end of tspan.
author | Carlo de Falco <carlo.defalco@polimi.it> |
---|---|
date | Sun, 11 Oct 2015 20:39:11 +0200 |
parents | c8240a60dd01 |
children |
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#include <octave/oct.h> DEFUN_DLD (oregonator, args, , "The `oregonator'.\n\ \n\ Reference:\n\ \n\ Oscillations in chemical systems. IV. Limit cycle behavior in a\n\ model of a real chemical reaction. Richard J. Field and Richard\n\ M. Noyes, The Journal of Chemical Physics, Volume 60 Number 5,\n\ March 1974.") { ColumnVector dx (3); ColumnVector x (args(0).vector_value ()); dx(0) = 77.27 * (x(1) - x(0)*x(1) + x(0) - 8.375e-06*pow (x(0), 2.0)); dx(1) = (x(2) - x(0)*x(1) - x(1)) / 77.27; dx(2) = 0.161*(x(0) - x(2)); return octave_value (dx); }