c1f052eaf9
Adds <algorithm> include to two source files where libstdc++ does not indirectly include them
72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
/***************************************************************************
|
|
* Copyright (c) 2023 Ondsel, Inc. *
|
|
* *
|
|
* This file is part of OndselSolver. *
|
|
* *
|
|
* See LICENSE file for details about copyright. *
|
|
***************************************************************************/
|
|
|
|
#include <algorithm>
|
|
#include "Power.h"
|
|
#include "Constant.h"
|
|
#include "Ln.h"
|
|
|
|
using namespace MbD;
|
|
|
|
MbD::Power::Power()
|
|
{
|
|
}
|
|
|
|
MbD::Power::Power(Symsptr bse, Symsptr ex) : FunctionXY(bse, ex)
|
|
{
|
|
}
|
|
|
|
Symsptr MbD::Power::differentiateWRTx()
|
|
{
|
|
auto yminus1 = Symbolic::sum(y, sptrConstant(-1.0));
|
|
auto power = Symbolic::raisedTo(x, yminus1);
|
|
auto deriv = Symbolic::times(y, power);
|
|
return deriv->simplified(deriv);
|
|
}
|
|
|
|
Symsptr MbD::Power::differentiateWRTy()
|
|
{
|
|
auto lnterm = std::make_shared<Ln>(x);
|
|
auto deriv = Symbolic::times(clonesptr(), lnterm);
|
|
return deriv->simplified();
|
|
}
|
|
|
|
Symsptr MbD::Power::copyWith(Symsptr argx, Symsptr argy)
|
|
{
|
|
return std::make_shared<Power>(argx, argy);
|
|
}
|
|
|
|
double MbD::Power::getValue()
|
|
{
|
|
return std::pow(x->getValue(), y->getValue());
|
|
}
|
|
|
|
Symsptr MbD::Power::clonesptr()
|
|
{
|
|
return std::make_shared<Power>(*this);
|
|
}
|
|
|
|
Symsptr MbD::Power::simplifyUntil(Symsptr sptr, std::shared_ptr<std::unordered_set<Symsptr>> set)
|
|
{
|
|
auto itr = std::find_if(set->begin(), set->end(), [sptr](Symsptr sym) {return sptr.get() == sym.get(); });
|
|
if (itr != set->end()) return sptr;
|
|
auto newx = x->simplifyUntil(x, set);
|
|
auto newy = y->simplifyUntil(y, set);
|
|
if (y->isConstant() && y->getValue() == 1) {
|
|
return newx;
|
|
}
|
|
auto copy = copyWith(newx, newy);
|
|
return copy;
|
|
}
|
|
|
|
std::ostream& MbD::Power::printOn(std::ostream& s) const
|
|
{
|
|
s << "pow(" << *x << "," << *y << ")";
|
|
return s;
|
|
}
|