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task8

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dino.celebic 2025-11-11 15:50:51 +01:00
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ex3/seq/jacobi_oo_stl/userset.h Normal file
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#ifndef USERSET_FILE
#define USERSET_FILE
#include <cmath>
/**
* User function: f(@p x,@p y)
* @param[in] x x-coordinate of discretization point
* @param[in] y y-coordinate of discretization point
* @return value for right hand side f(@p x,@p y)
*/
double FunctF(double const x, double const y);
/**
* User function: u(@p x,@p y)
* @param[in] x x-coordinate of discretization point
* @param[in] y y-coordinate of discretization point
* @return value for solution vector u(@p x,@p y)
*/
double FunctU(double const x, double const y);
/**
* User function: f(@p x,@p y) = @f$ x^2 \sin(2.5\pi y)@f$.
* @param[in] x x-coordinate of discretization point
* @param[in] y y-coordinate of discretization point
* @return value f(@p x,@p y)
*/
inline double fNice(double const x, double const y)
{
return x * x * std::sin(2.5 * 3.14159 * y);
}
/**
* User function: f(@p x,@p y) = 0$.
* @param[in] x x-coordinate of discretization point
* @param[in] y y-coordinate of discretization point
* @return value 0
*/
inline double f_zero(double const x, double const y)
//double f_zero(double const /*x*/, double const /*y*/)
{
return 0.0 + 0.0*(x+y);
}
#endif