/// <summary>
/// Calculate function value
/// given each values with each name of terms
/// to evaluate
/// </summary>
/// <param name="values">values to set each terms</param>
/// <returns>a double value as the calculation result</returns>
protected double Calculate(IEnumerable <double> values)
{
int index = 0;
foreach (string u in this.nameTerms)
{
if (index < values.Count())
{
this.function.Let(u, values.ElementAt(index));
++index;
}
else
{
break;
}
}
Interfaces.IArithmetic fd = this.function.Compute();
if (fd is NumericValue)
{
return(Convert.ToDouble(fd));
}
else
{
// un ou plusieurs termes n'ont pas de valeur
throw new KeyNotFoundException();
}
}
/// <summary>
/// Add a new coordinate into this system
/// </summary>
/// <param name="f">function</param>
/// <param name="nameTerms">terms identified by name and ordered as same to coords</param>
/// <param name="coords">coordinate</param>
public void Add(Arithmetic f, IEnumerable <string> nameTerms, params double[] coords)
{
int index = 0;
foreach (string u in nameTerms)
{
if (index < coords.Count())
{
f.Let(u, coords.ElementAt(index));
++index;
}
else
{
break;
}
}
Interfaces.IArithmetic fd = f.Compute();
if (f is NumericValue)
{
List <double> c = new List <double>(coords);
c.Add(Convert.ToDouble(f));
Coordinates src = new Coordinates(c);
src = this.move.Floor(src);
this.Add(src);
}
else
{
// un ou plusieurs termes n'ont pas de valeur
throw new KeyNotFoundException();
}
}
/// <summary>
/// Test if a is a double value
/// </summary>
/// <param name="a">arithmetic class</param>
/// <returns>true if it is a double</returns>
public static bool IsDouble(this Interfaces.IArithmetic a)
{
return(a is NumericValue);
}
