public static TamThucBacHai operator +(TamThucBacHai tamThucBacHai1, TamThucBacHai tamThucBacHai2)
{
TamThucBacHai d = new TamThucBacHai
{
a = tamThucBacHai1.a + tamThucBacHai2.a,
b = tamThucBacHai1.b + tamThucBacHai2.b,
c = tamThucBacHai1.c + tamThucBacHai2.c
};
return(d);
}
public static TamThucBacHai operator-(TamThucBacHai tamThucBacHai)
{
TamThucBacHai d = new TamThucBacHai
{
a = -tamThucBacHai.a,
b = -tamThucBacHai.b,
c = -tamThucBacHai.c
};
return(d);
}
static void Main(string[] args)
{
TamThucBacHai tamThucBacHai1 = new TamThucBacHai(3, 0, 5);
TamThucBacHai tamThucBacHai2 = new TamThucBacHai(123, 456, 789);
tamThucBacHai1 = -tamThucBacHai1;
tamThucBacHai2 = -tamThucBacHai2;
Console.WriteLine("Tam thuc bac hai 1: " + tamThucBacHai1);
Console.WriteLine("Tam thuc bac hai 2: " + tamThucBacHai2);
TamThucBacHai tong = tamThucBacHai1 + tamThucBacHai2;
TamThucBacHai hieu = tamThucBacHai1 - tamThucBacHai2;
Console.WriteLine(tamThucBacHai1 + " + " + tamThucBacHai2 + " = " + tong);
Console.WriteLine(tamThucBacHai1 + " - " + tamThucBacHai2 + " = " + hieu);
}