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annotate examples/oregonator.cc @ 3162:7c96e85c76db

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[project @ 1998-04-08 18:19:35 by jwe]
author jwe
date Wed, 08 Apr 1998 18:21:04 +0000
parents 8c7955a8d49f
children e68976912bb5
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1 #include <octave/oct.h>
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2
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3 DEFUN_DLD (oregonator, args, ,
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4 "The `oregonator'.\n\
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5 \n\
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6 Reference:\n\
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7 \n\
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8 Oscillations in chemical systems. IV. Limit cycle behavior in a\n\
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9 model of a real chemical reaction. Richard J. Field and Richard\n\
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10 M. Noyes, The Journal of Chemical Physics, Volume 60 Number 5,\n\
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11 March 1974.")
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12 {
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13 ColumnVector dx (3);
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14
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15 ColumnVector x = args(0).vector_value ();
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16
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17 dx(0) = 77.27 * (x(1) - x(0)*x(1) + x(0) - 8.375e-06*pow (x(0), 2));
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18 dx(1) = (x(2) - x(0)*x(1) - x(1)) / 77.27;
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19 dx(2) = 0.161*(x(0) - x(2));
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20
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21 return octave_value (dx);
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22 }