MbDCode repo renamed to OndselSolver. Several *.asmt files working.

MbDCode/FunctionXY.cpp

@@ -1,4 +1,7 @@
 #include "FunctionXY.h"
+#include "Sum.h"
+
+using namespace MbD;
 
 MbD::FunctionXY::FunctionXY()
 {
@@ -7,3 +10,12 @@ MbD::FunctionXY::FunctionXY()
 MbD::FunctionXY::FunctionXY(Symsptr base, Symsptr exp) : x(base), y(exp)
 {
 }
+
+void MbD::FunctionXY::arguments(Symsptr args)
+{
+	//args is a Sum with "terms" containing the actual arguments
+	auto sum = std::static_pointer_cast<Sum>(args);
+	assert(sum->terms->size() == 2);
+	x = sum->terms->at(0);
+	y = sum->terms->at(1);
+}