/// <summary>
/// 多項式が整理できる場合は整理する
/// ・分母分子ごとに同類項をまとめる
/// ・共通因数があれば求める
/// ・共通因数を掛けて約分し、それを分母分子に分けて掛ける
/// </summary>
private void Initialise()
{
if (NumMonof.IsZero())
{
DenMonof = new List <Monomial> {
1
};
return;
}
if (NumMonof.IsOne() && DenMonof.IsOne())
{
return;
}
//0の項を削除
NumMonof = NumMonof.Where(x => !x.IsZero()).ToList();
DenMonof = DenMonof.Where(x => !x.IsZero()).ToList();
//同類項をまとめる
var SortedNumerator = NumMonof.Grouping(IsNumberKey: false).Select(x =>
{
var res = x[0];
res.Number = x.Select(y => y.Number).Aggregate((now, next) => now + next);
return(res);
}).ToList();
var SortedDenominator = DenMonof.Grouping(IsNumberKey: false).Select(x =>
{
var res = x[0];
res.Number = x.Select(y => y.Number).Aggregate((now, next) => now + next);
return(res);
}).ToList();
if (SortedNumerator.IsOne() || SortedDenominator.IsOne())
{
NumMonof = SortedNumerator;
DenMonof = SortedDenominator;
return;
}
var NumFactor = Factorizations.FactorOut(SortedNumerator);
var DenFactor = Factorizations.FactorOut(SortedDenominator);
Monomial Factor = NumFactor.Item1 / DenFactor.Item1;
NumMonof = NumFactor.Item2.Select(x => x * Factor.GetNumerator()).ToList();
DenMonof = DenFactor.Item2.Select(x => x * Factor.GetDenominator()).ToList();
Reduction();
Trace.WriteLine("Formula Initialized:" + this.GetString());
}
