public override void validate()
{
if (2 * Sides.Max() >= Sides.Sum())
{
throw new ArgumentException("Not a figure");
}
}
private bool CalcIsPrimitive()
{
var nonZeroSides = Sides.Where(s => s != 0).ToArray();
for (int f = 2; f <= (int)Math.Ceiling((double)Sides.Max()); f++)
{
if (nonZeroSides.All(s => Numerics.IsIntegral((double)s / f)))
{
return(false);
}
}
return(true);
}
public override double area()
{
validate();
if (2 * Sides.Max() >= Sides.Sum())
{
throw new ArgumentException("Not a figure");
}
if (Math.Pow(Sides.Max(), 2) * 2 == Math.Pow(Sides[0], 2) + Math.Pow(Sides[1], 2) + Math.Pow(Sides[2], 2))
{
return(Sides[0] * Sides[1] * Sides[2] / Sides.Max() / 2);
}
double hper = Sides.Sum() / 2;
return(Math.Sqrt(hper * (hper - Sides[0]) * (hper - Sides[1]) * (hper - Sides[2])));
}