public TermNumericalExpr SimplyGroupPow()
{
var exprs = new ExprCollection <NumericalExpr>(Exprs);
var pDone = false;
for (var i = 0; i < exprs.Count; i++)
{
for (var j = i + 1; j < exprs.Count;)
{
var e1 = exprs[i];
var _base = e1.GetPowBase();
if (_base is NumericalExpr n1)
{
var e2 = exprs[j];
var n2 = e2.GetPowBase();
if (n1 == n2)
{
var exp1 = e1.GetPowExp();
if (exp1 != null)
{
var exp2 = e2.GetPowExp();
if (exp2 != null)
{
var nexp = (exp1 + exp2).SimplySumNumericals();
if (nexp != null)
{
exprs[i] = MakePow(n1, nexp);
pDone = true;
exprs.RemoveAt(j);
continue;
}
}
}
}
j++;
}
}
}
if (!pDone)
{
return(null);
}
return(new TermNumericalExpr(Sign, exprs));
}
public override NumericalExpr SimplySumNumericals()
{
var exprs = new ExprCollection <NumericalExpr>(Exprs);
var pDone = false;
for (var i = 0; i < exprs.Count; i++)
{
var e1 = SimplyOrExpr(e => e.SimplySumNumericals(), exprs[i]);
var num1 = e1.SimplyToInteger();
if (num1 != null)
{
var pDone1 = false;
for (var j = i + 1; j < exprs.Count;)
{
var e2 = SimplyOrExpr(e => e.SimplySumNumericals(), exprs[j]);
var num2 = e2.SimplyToInteger();
if (num2 != null)
{
num1 += num2;
pDone = pDone1 = true;
exprs.RemoveAt(j);
continue;
}
j++;
}
if (pDone1)
{
exprs[i] = MakeNumber(num1);
}
}
}
return
((!pDone)
? null
: (exprs.Count == 1)
? exprs.First()
: MakeSum(exprs));
}