public override INumber Multiple(RuntimeData runtime, INumber val)
{
if (val is Number && (val as Number).Value == 1)
{
return(this.Clone());
}
if (val is Number || val is Fraction)
{
if (this.Pow is Number && (this.Pow as Number).Value == 1)
{
AdditionFormula aa = new AdditionFormula();
foreach (var item in this.items)
{
aa.AddItem(runtime, item.Multiple(runtime, val));
}
return(aa);
}
}
else
{
MultipleFormula mf = new MultipleFormula();
mf.AddItem(runtime, this);
mf.AddItem(runtime, val);
return(mf);
}
throw new NotImplementedException();
}
public override INumber Multiple(RuntimeData runtime, INumber val)
{
if (this.Value == 0)
{
return(Number.New(0));
}
var v = val.Eval(runtime);
if (v is Number)
{
if (this.Pow.Equals(runtime, val.Pow))
{
return(Number.New(this.Value * (v as Number).Value));
}
else
{
MultipleFormula mf = new MultipleFormula();
mf.AddItem(runtime, this);
mf.AddItem(runtime, val);
return(mf);
}
}
return(val.Multiple(runtime, this));
}
public override INumber Multiple(RuntimeData runtime, INumber val)
{
var v = val.Eval(runtime);
if (v is Variable &&
(v as Variable).Name == this.Name)
{
var me = this.Clone() as Variable;
me.multi = me.multi.Multiple(runtime, (v as Variable).multi);
me.Pow = me.Pow.Add(runtime, (v as Variable).Pow);
return(me);
}
if (v is Number && (v as Number).Value == 1)
{
return(this);
}
if (v is Number)
{
var me = this.Clone() as Variable;
me.multi = me.multi.Multiple(runtime, v);
return(me);
}
return(v.Multiple(runtime, this));
MultipleFormula af = new MultipleFormula();
af.AddItem(runtime, this);
af.AddItem(runtime, v);
return(af);
}
public override INumber Multiple(RuntimeData runtime, INumber val)
{
MultipleFormula mf = new MultipleFormula();
mf.AddItem(runtime, val);
mf.AddItem(runtime, this);
return(mf);
}
public override INumber Multiple(RuntimeData runtime, INumber val)
{
if (val is Fraction)
{
var f = val.Clone() as Fraction;
f.Numerator = f.Numerator.Multiple(runtime, this);
return(f);
}
if (val is Number && (val as Number).Value == 0)
{
return(Number.New(0));
}
if (val is Number || val is Variable || val is Member)
{
var me = this.Clone() as MultipleFormula;
me.AddItem(runtime, val);
return(me);
}
else if (val is AdditionFormula)
{
var res = this.Clone() as MultipleFormula;
res.AddItem(runtime, val);
return(res);
}
else if (val is MultipleFormula)
{
var res = new MultipleFormula();
var v = val as MultipleFormula;
for (int i = 0; i < this.items.Count; i++)
{
bool flag = false;
for (int j = 0; j < v.items.Count; j++)
{
if (this.items[i].CanJoin(runtime, v.items[j]))
{
res.AddItem(runtime, this.items[i].Multiple(runtime, v.items[j]));
flag = true; break;
}
}
if (!flag) // ConJoinに引っかからなかった
{
res.AddItem(runtime, this.items[i]);
}
}
return(res);
}
else
{
var me = this.Clone() as MultipleFormula;
me.AddItem(runtime, val);
return(me);
}
}
public override INumber Multiple(RuntimeData runtime, INumber val)
{
if (val is ImaginaryNumber)
{
Number res = Number.New(this.Value * (val as ImaginaryNumber).Value * -1);
return(res);
}
MultipleFormula mf = new MultipleFormula();
mf.AddItem(runtime, val);
mf.AddItem(runtime, this);
return(mf);
}
public override INumber Integrate(RuntimeData runtime, string t)
{
INumber res = null;
if (this.func is IIntegrateWithParameters)
{
res = (this.func as IIntegrateWithParameters).Integrate(runtime, t, this.param);
// この段階ではpowのことは感がられていないので、pow部をここで処理する
if (!(this.Pow is Number && (this.Pow as Number).Value == 1))
{
throw new NotImplementedException("べき乗が1ではない関数の積分はまだ未対応です");
// 以下、微分のコードのコピペ
MultipleFormula mf = new MultipleFormula();
mf.AddItem(runtime, res);
INumber pow = this.Clone();
pow.Pow = pow.Pow.Subtract(runtime, Number.New(1));
mf.AddItem(runtime, pow);
res = mf;
}
if (runtime.Setting.DoOptimize)
{
res = res.Optimise(runtime);
}
}
else
{
res = new FuncedINumber(
runtime.Functions["intg"], new INumber[] { new Variable(new FuncCalc.Token(t, Analyzer.TokenType.Member)), this });
// たぶんpowの部分が怪しいのでチェックすること
Debugger.Break();
}
//最終処理部
{
// resが結果だけど、べき乗部分の処理をしていないかもしれないので要チェック
Debugger.Break();
if (!(this.Pow is Number && (this.Pow as Number).Value == 1))
{
runtime.Setting.Logger.AddWarning("関数式の積分の部分は1以外のべき乗の計算を考慮していないので、結果がおかしくなっている可能性があります。");
}
return(res);
}
}
public override INumber ExecuteDiff(RuntimeData runtime, string t)
{
INumber res = null;
if (this.func is IDiffWithParameters)
{
res = (this.func as IDiffWithParameters).ExecuteDiff(runtime, t, this.param);
// この段階ではpowのことは感がられていないので、pow部をここで処理する
if (!(this.Pow is Number && (this.Pow as Number).Value == 1))
{
MultipleFormula mf = new MultipleFormula();
mf.AddItem(runtime, res);
INumber pow = this.Clone();
pow.Pow = pow.Pow.Subtract(runtime, Number.New(1));
mf.AddItem(runtime, pow);
res = mf;
}
if (runtime.Setting.DoOptimize)
{
res = res.Optimise(runtime);
}
}
else
{
res = new FuncedINumber(
runtime.Functions["diff"], new INumber[] { new Variable(new FuncCalc.Token(t, Analyzer.TokenType.Member)), this });
// たぶんpowの部分が怪しいのでチェックすること
Debugger.Break();
}
//最終処理部
{
var mf = Runtime.Func.Differential.DiffPow(runtime, t, this);
if (mf != null)
{
mf.AddItem(runtime, res);
return(mf);
}
else
{
return(res);
}
}
}
public override INumber Multiple(RuntimeData runtime, INumber val)
{
if (val is IConstParameter)
{
var me = this.Clone() as FloatNumber;
me.value *= (val as IConstParameter).ConstValue;
return(me);
}
if (val is InfinityValue)
{
return(val.Multiple(runtime, this));
}
MultipleFormula mf = new MultipleFormula();
mf.AddItem(runtime, val);
mf.AddItem(runtime, this);
return(mf);
}
public override INumber Multiple(RuntimeData runtime, INumber val)
{
if (val.ValueType == ValueType.Plus)
{
return(this == InfinityValue.value ? InfinityValue.value : InfinityValue.minusvalue);
}
else if (val.ValueType == ValueType.Minus)
{
return(this == InfinityValue.value ? InfinityValue.minusvalue : InfinityValue.value);
}
else // val.ValueType == ValueType.Unknown
{
if (val is MultipleFormula)
{
var res = this;
MultipleFormula mf = new Expression.MultipleFormula();
for (int i = 0; i < (val as MultipleFormula).Items.Count; i++)
{
var item = (val as MultipleFormula).Items[i];
if (item.ValueType == ValueType.Minus)
{
res = (res == InfinityValue.value) ? InfinityValue.minusvalue : InfinityValue.value;
}
if (item.ValueType == ValueType.Unknown)
{
mf.AddItem(runtime, item);
}
}
mf.AddItem(runtime, res);
return(mf);
}
else
{
MultipleFormula mf = new MultipleFormula();
mf.AddItem(runtime, this);
mf.AddItem(runtime, val);
return(mf);
}
}
}
public override INumber Power(RuntimeData runtime, INumber val)
{
if (val is Number)
{
var pow = val as Number;
if (pow.Value == 0)
{
return(Number.New(1));
}
if (pow.Value < 0) // 乗数がマイナスだったら
{
var res = this.Clone();
res = res.Power(runtime, Number.New(pow.Value * -1));
return(new Fraction(res, Number.New(1)));
}
if (pow.Value % 2 == 0) // 乗数が偶数だったら
{
if (pow.Value % 4 == 0)
{
return(Number.New(this.Value).Power(runtime, pow));
}
else
{
return(Number.New(this.Value).Power(runtime, pow).Multiple(runtime, Number.New(-1)));
}
}
else
{
MultipleFormula mf = new MultipleFormula();
mf.AddItem(runtime, Number.New(this.Value).Power(runtime, Number.New(pow.Value - 1)));
mf.AddItem(runtime, this);
return(mf);
}
}
throw new NotImplementedException("虚数に数値以外のべき乗含むのはまだ実装していません。");
}
public override INumber ExecuteDiff(RuntimeData runtime, string t)
{
MultipleFormula mf = Runtime.Func.Differential.DiffPow(runtime, t, this);
var res = this.Eval(runtime).ExecuteDiff(runtime, t);
if (mf != null)
{
mf.AddItem(runtime, res);
return(mf);
}
else
{
return(res);
}
}
public override INumber Optimise(RuntimeData runtime)
{
var me = this.Clone() as Fraction;
// [分母][分子]が分数の場合は有理化する
if (me.Denominator is Fraction && me.Numerator is Fraction)
{
me = new Fraction(
(me.Denominator as Fraction).Numerator.Multiple(runtime, (me.Numerator as Fraction).Denominator),
(me.Denominator as Fraction).Denominator.Multiple(runtime, (me.Denominator as Fraction).Numerator)
);
}
else if (me.Denominator is Fraction)
{
me = new Fraction(
(me.Denominator as Fraction).Numerator,
(me.Denominator as Fraction).Denominator.Multiple(runtime, me.Numerator)
);
}
else if (me.Numerator is Fraction)
{
me = new Fraction(
me.Denominator.Multiple(runtime, (me.Numerator as Fraction).Denominator),
(me.Numerator as Fraction).Numerator
);
}
// 分母が0だったら無限を返す
if (me.Denominator.Eval(runtime).Equals(runtime, Number.New(0)))
{
if (me.Numerator.ValueType == ValueType.Plus)
{
return(InfinityValue.PlusValue);
}
else if (me.Numerator.ValueType == ValueType.Minus)
{
return(InfinityValue.MinusValue);
}
else
{
MultipleFormula mf = new MultipleFormula();
mf.AddItem(runtime, this.Numerator);
mf.AddItem(runtime, InfinityValue.PlusValue);
return(mf);
;
}
}
if (me.Numerator is Number && me.Denominator is Number)
{
// 最大公約数を求めて分母分子を割る
var func = runtime.Functions.Where(
f => f.Key == "gcd" && f.Value.Parameter[0] == ExpressionType.Number && f.Value.Parameter[1] == ExpressionType.Number);
var res = func.First().Value.Execute(runtime, me.Denominator, me.Numerator);
me.Denominator = me.Denominator.Divide(runtime, res);
me.Numerator = me.Numerator.Divide(runtime, res);
}
else if (me.Denominator is MultipleFormula && this.Numerator is Variable)
{
bool dv_res; INumber dr_res;
dr_res = (me.Denominator as MultipleFormula).TryDivide(runtime, me.Numerator, out dv_res);
if (dv_res)
{
me.Numerator = Number.New(1);
me.Denominator = dr_res;
}
else
{
}
}
else if (me.Denominator is MultipleFormula && me.Numerator is MultipleFormula)
{
for (int i = 0; i < (me.Numerator as MultipleFormula).Count; i++)
{
var dt = (me.Numerator as MultipleFormula).Items[i];
bool dv_res;
var r = (me.Denominator as MultipleFormula).TryDivide(runtime, dt, out dv_res);
if (dv_res)
{
me.Denominator = r;
(me.Numerator as MultipleFormula).Items.RemoveAt(i);
i--;
}
else
{
}
}
}
// 分母分子を最適化する
me.Denominator = me.Denominator.Optimise(runtime);
me.Numerator = me.Numerator.Optimise(runtime);
// メンバーを含む式で約分できるか確かめる
if (me.Numerator is MultipleFormula && me.Numerator.Pow.Equals(runtime, Number.New(1)) &&
me.Denominator is MultipleFormula && me.Denominator.Pow.Equals(runtime, Number.New(1)))
{
var den = me.Denominator as MultipleFormula;
bool flag = false;
for (int i = 0; i < (me.Numerator as MultipleFormula).Count; i++)
{
bool res;
var fm = den.TryDivide(runtime, (me.Numerator as MultipleFormula).Items[i], out res);
if (res)
{
flag = true;
me.Denominator = den;
if (fm is MultipleFormula)
{
den = fm as MultipleFormula;
}
else
{
break;
}
(me.Numerator as MultipleFormula).Items.RemoveAt(i);
i--;
}
}
}
// 分母が1だったら分子部分だけを返す
if (me.Denominator.Equals(runtime, Number.New(1)))
{
return(me.Numerator);
}
return(me);
}