private IEnumerable <Variable> SortVariables(Summand summand)
{
return(summand.Variables
.OrderBy(var => var.Name)
.ThenBy(var => var.Degree)
.ToList());
}
public bool IsSimilarTo(Summand summand)
{
if (summand == null)
{
return(false);
}
if (Variables == null || summand.Variables == null)
{
return(false);
}
if (Variables.Length != summand.Variables.Length)
{
return(false);
}
var sortedFirstVariables = SortVariables(this);
var sortedSecondVariables = SortVariables(summand);
return(sortedFirstVariables.SequenceEqual(sortedSecondVariables));
}