/// <summary>
/// Calculates value of function for given point.
/// </summary>
/// <param name="coordinates">Point for which we want to calculate function value.</param>
/// <returns>Value of function.</returns>
public override double CalculateValue(params double[] coordinates)
{
if (coordinates.Length == 1 && parameters != null)
{
SearchByCoordinateAxes.Expression expression = parameters[0];
double x0 = expression(coordinates[0]);
return(Math.Pow(x0 - 3, 2));
}
else
{
return(Math.Pow(coordinates[0] - 3, 2));
}
}
/// <summary>
/// Calculates value of function for given point.
/// </summary>
/// <param name="coordinates">Point for which we want to calculate function value.</param>
/// <returns>Value of function.</returns>
public override double CalculateValue(params double[] coordinates)
{
if (coordinates.Length == 1 && parameters != null)
{
SearchByCoordinateAxes.Expression expression0 = parameters[0];
SearchByCoordinateAxes.Expression expression1 = parameters[1];
double x0 = expression0(coordinates[0]);
double x1 = expression1(coordinates[0]);
return(Math.Pow(x0 - 4, 2) + 4 * Math.Pow(x1 - 2, 2));
}
else
{
return(Math.Pow(coordinates[0] - 4, 2) + 4 * Math.Pow(coordinates[1] - 2, 2));
}
}
/// <summary>
/// Calculates value of function for given point.
/// </summary>
/// <param name="coordinates">Point for which we want to calculate function value.</param>
/// <returns>Value of function.</returns>
public override double CalculateValue(params double[] coordinates)
{
if (coordinates.Length == 1 && parameters != null)
{
SearchByCoordinateAxes.Expression expression0 = parameters[0];
SearchByCoordinateAxes.Expression expression1 = parameters[1];
double x0 = expression0(coordinates[0]);
double x1 = expression1(coordinates[0]);
return(Math.Abs((x0 - x1) * (x0 + x1)) + Math.Sqrt(Math.Pow(x0, 2) + Math.Pow(x1, 2)));
}
else
{
return(Math.Abs((coordinates[0] - coordinates[1]) * (coordinates[0] + coordinates[1]))
+ Math.Sqrt(Math.Pow(coordinates[0], 2) + Math.Pow(coordinates[1], 2)));
}
}
/// <summary>
/// Calculates value of function for given point.
/// </summary>
/// <param name="coordinates">Point for which we want to calculate function value.</param>
/// <returns>Value of function.</returns>
public override double CalculateValue(params double[] coordinates)
{
double sum = 0;
if (coordinates.Length == 1 && parameters != null)
{
for (int i = 0; i < parameters.Length; i++)
{
SearchByCoordinateAxes.Expression expression = parameters[i];
double xi = expression(coordinates[0]);
sum += Math.Pow(xi - (i + 1), 2);
}
}
else
{
for (int i = 0; i < coordinates.Length; i++)
{
sum += Math.Pow(coordinates[i] - (i + 1), 2);
}
}
return(sum);
}
/// <summary>
/// Sets parameters of function.
/// </summary>
/// <param name="index">Index of parameters field.</param>
/// <param name="expression">Expression used as a parameter.</param>
public void SetParameters(int index, SearchByCoordinateAxes.Expression expression)
{
parameters[index] = expression;
}
