public Polynomial(IEnumerable <Summand> summands)
{
if (summands == null)
{
throw new ArgumentNullException(nameof(summands));
}
foreach (var summand in summands)
{
Summands.Add(summand);
}
}
/// <summary>
/// Adds the <paramref name="expression"/> to this <see cref="SOP"/>
/// </summary>
/// <param name="expression"></param>
/// <returns></returns>
public IExpression Add(IExpression expression)
{
// If the other expression is an SOP
if (expression is SOP sum)
{
// Check if the signs match
return(new SOP(Sign == sum.Sign ?
// If so, just concat lists of summands
Summands.Concat(sum.Summands) :
// Otherwise negate the second expression
Summands.Concat(sum.Summands.Select((x) => x.Negation())), Sign));
}
// If it's not simply create a new SOP based on it and add it to the current instance
else
{
return(Add(new SOP(expression)));
}
}
