static double Val(ICalcExprBase2 x)
{
return(((CalcExprInterp2)x).Value);
}
static double Val(ICalcExprBase2 x)
{
return ((CalcExprInterp2)x).Value;
}
public ICalcExprBase2 Minus(ICalcExprBase2 x, ICalcExprBase2 y)
{
return(new CalcExprInterp2 {
Value = Val(x) - Val(y)
});
}
public ICalcExprBase2 Plus(ICalcExprBase2 x, ICalcExprBase2 y)
{
return new CalcExprInterp2 { Value = Val(x) + Val(y) };
}