Implement Power function

OndselSolver/Power.cpp

@@ -5,7 +5,7 @@
  *                                                                         *
  *   See LICENSE file for details about copyright.                         *
  ***************************************************************************/
- 
+
 #include "Power.h"
 #include "Constant.h"
 #include "Ln.h"
@@ -35,13 +35,36 @@ Symsptr MbD::Power::differentiateWRTy()
 	return deriv->simplified();
 }
 
-Symsptr MbD::Power::simplifyUntil(Symsptr, std::shared_ptr<std::unordered_set<Symsptr>>)
+Symsptr MbD::Power::copyWith(Symsptr argx, Symsptr argy)
 {
-	assert(false);
-	return Symsptr();
+	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;
+}