/// <summary>
/// Calculates unary expressions and pushes the result into the operands stack
/// </summary>
/// <param name="op">Unary operator</param>
/// <param name="operand">Operand</param>
private void Calculate(string op, PrimesBigInteger operand)
{
PrimesBigInteger res = PrimesBigInteger.One;
try
{
switch (op)
{
case Token.UnaryMinus: res = operand.Multiply(PrimesBigInteger.NegativeOne); break;
//case Token.Abs: res = Math.Abs(operand); break;
//case Token.ACosine: res = Math.Acos(operand); break;
//case Token.ASine: res = Math.Asin(operand); break;
//case Token.ATangent: res = Math.Atan(operand); break;
//case Token.Cosine: res = Math.Cos(operand); break;
//case Token.Ln: res = Math.Log(operand); break;
//case Token.Log10: res = Math.Log10(operand); break;
//case Token.Sine: res = Math.Sin(operand); break;
case Token.Sqrt: res = operand.SquareRoot(); break;
//case Token.Tangent: res = Math.Tan(operand); break;
//case Token.Exp: res = Math.Exp(operand); break;
//case Token.Factorial: for (int i = 2; i <= (int)operand; res *= i++) ;
//break;
}
operands.Push(PostProcess(res));
}
catch (Exception e)
{
ThrowException(e.Message);
}
}