Arg.cs

using System.Numerics;
using Waher.Script.Abstraction.Elements;
using Waher.Script.Model;
using Waher.Script.Objects;
 
namespace Waher.Script.Functions.ComplexNumbers
{
    public class Arg : FunctionOneScalarVariable
    {
        public Arg(ScriptNode Argument, int Start, int Length, Expression Expression)
            : base(Argument, Start, Length, Expression)
        {
        }
 
        public override string FunctionName => nameof(Arg);
 
        public override IElement EvaluateScalar(double Argument, Variables Variables)
        {
            return DoubleNumber.ZeroElement;
        }
 
        public override IElement EvaluateScalar(Complex Argument, Variables Variables)
        {
            return new DoubleNumber(Argument.Phase);
        }
    }
}