public static string Add(string a, string b)
{
a = string.IsNullOrEmpty(a) ? "0" : a.Replace(",", "");
b = string.IsNullOrEmpty(b) ? "0" : b.Replace(",", "");
return((BigFloat.Parse(a) + BigFloat.Parse(b)).ToString());
}
// 小于
public static bool Less(string a, string b, bool equals)
{
a = string.IsNullOrEmpty(a) ? "0" : a.Replace(",", "");
b = string.IsNullOrEmpty(b) ? "0" : b.Replace(",", "");
if (equals)
{
return(BigFloat.Parse(a) <= BigFloat.Parse(b));
}
return(BigFloat.Parse(a) < BigFloat.Parse(b));
}
public static string Max(string a, string b)
{
a = string.IsNullOrEmpty(a) ? "0" : a.Replace(",", "");
b = string.IsNullOrEmpty(b) ? "0" : b.Replace(",", "");
if ((BigFloat.Parse(a) < BigFloat.Parse(b)))
{
return(b);
}
return(a);
}
public static void Test()
{
BigFloat pi = BigFloat.Parse("3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647093844609550582231725359408128481117450284102701938521105559644622948954930381964428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273724587006606315588174881520920962829254091715364367892590360011330530548820466521384146951941511609433057270365759591953092186117381932611793105118548074462379962749567351885752724891227938183011949");
Console.WriteLine("\nPi to a really long decimal place:");
Console.WriteLine(pi.ToString(16));
BigFloat pi2 = BigFloat.Parse("3.141592653589");
Console.WriteLine(pi2.ToString(16));
Console.WriteLine(BigFloat.Round(pi2).ToString(16));
}
// 取整
public static string Round8(string a)
{
a = string.IsNullOrEmpty(a) ? "0" : a.Replace(",", "");
return(BigFloat.Parse(a).ToString(8));
}
// 等于
public static bool Equals(string a, string b)
{
a = string.IsNullOrEmpty(a) ? "0" : a.Replace(",", "");
b = string.IsNullOrEmpty(b) ? "0" : b.Replace(",", "");
return(BigFloat.Parse(a) == BigFloat.Parse(b));
}
public static string Sqrt(string a)
{
a = string.IsNullOrEmpty(a) ? "0" : a.Replace(",", "");
return(BigFloat.Sqrt(BigFloat.Parse(a)).ToString());
}