internal static Term Parse(string termString)
{
if (string.IsNullOrWhiteSpace(termString))
{
throw new ArgumentException();
}
string input = termString.Replace(" ", "");
if (string.IsNullOrWhiteSpace(input))
{
throw new ArgumentException();
}
string[] parts = input.Split(new char[] { '*' });
Complex coefficient = Complex.One;
if (parts[0].All(c => c == '-' || char.IsDigit(c)))
{
coefficient = new Complex(double.Parse(parts[0]), 0);
parts = parts.Skip(1).ToArray();
}
else if (parts[0].StartsWith("-") && parts[0].Any(c => char.IsLetter(c)))
{
coefficient = new Complex(-1, 0);
parts[0] = parts[0].Replace("-", "");
}
Indeterminate[] variables = parts.Select(str => Indeterminate.Parse(str)).ToArray();
return(new Term(coefficient, variables));
}
public void SetIndeterminateValues(List <Tuple <char, Complex> > indeterminateValues)
{
foreach (Tuple <char, Complex> indeterminateValue in indeterminateValues)
{
var matches = Variables.Where(indt => indt.Symbol == indeterminateValue.Item1);
if (matches.Any())
{
Indeterminate match = matches.Single();
match.SetValue(indeterminateValue.Item2);
}
}
}
