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change problem back to original ODE

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Krishna Vedala 2020-06-10 14:36:42 -04:00
parent 50ea49e58e
commit c5ce24d32c
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1 changed files with 3 additions and 6 deletions
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numerical_methods/ode_semi_implicit_euler.c
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@ -57,12 +57,9 @@
*/ */
void problem(const double *x, double *y, double *dy) void problem(const double *x, double *y, double *dy)
{ {
// const double omega = 1.F; // some const for the problem const double omega = 1.F; // some const for the problem
// dy[0] = y[1]; // x dot dy[0] = y[1]; // x dot
// dy[1] = -omega * omega * y[0]; // y dot dy[1] = -omega * omega * y[0]; // y dot
const double mu = 2.0;
dy[0] = y[1];
dy[1] = mu * (1.f - y[0] * y[0]) * y[1] - y[0];
} }
/** /**