private static Big Power(string a, string b)
{
Big result = new Big(1);
for (Big i = new Big(1); i <= b; i++)
{
result = result * a;
}
return(TrimZero(result));
}
public static Big Factorial(string a)
{
Big ab = new Big(a);
Big abplusone = ab + "1";
if (Compare(a, "1") != 0)
{
return(new Big(1));
}
string result = "1";
for (Big i = new Big(1); i < abplusone; i++)
{
result = (result * i).Value;
}
return(TrimZero(result));
}
public static bool IsFloat(Big b)
{
return(IsFloat(b.Value));
}
public static bool IsNegative(Big b)
{
return(IsNegative(b.Value));
}
public static bool IsNumeric(Big b)
{
return(IsNumeric(b.Value));
}
private static int Compare(Big b1, Big b2)
{
return(Compare(b1.Value, b2.Value));
}
private static Big Reverse(Big b)
{
return(Reverse(b.Value));
}
public static Big Negate(Big b)
{
return(Negate(b.Value));
}
private static Big Add(Big b1, Big b2)
{
return(Add(b1.Value, b2.Value));
}
public static Big SquareRoot(string s, string ac = "5")
{
Big a = new Big(ac);
string buff = "";
string output = "";
Big n = new Big(0);
Big c = new Big(0);
if (s.Length % 2 == 1)
{
s = s.Insert(0, "0");
}
for (Big i = new Big(0); i < a; i++)
{
s += "00";
}
string[] pairs = new string[s.Length / 2];
for (int i = 0; i < pairs.Length * 2; i += 2)
{
pairs[i / 2] = s[i].ToString();
pairs[i / 2] += s[i + 1].ToString();
}
Big j = new BigStr.Big(9);
for (; j >= "0"; j--)
{
if ((j ^ "2") < pairs[0] || (j ^ "2") == pairs[0])
{
break;
}
}
n = j;
output = n.ToString();
if (pairs.Length == 1)
{
return(new Big(output));
}
buff = (new Big(pairs[0]) - (n ^ "2")).Value;
Big k = new Big(0);
Big pairslength = new Big(pairs.Length);
for (Big i = new Big(1); i < pairslength; i++)
{
if (i == pairslength - a)
{
c = i;
}
buff += pairs[Convert.ToInt32(i.Value)];
string q = "";
string m = "";
for (k.Value = "9"; k >= "0"; k--)
{
m = (new Big(output) * "2").Value + k.ToString();
q = (m * k).Value;
if (Compare(q, buff) != 0)
{
break;
}
}
buff = (new Big(buff) - q).Value;
output += k.ToString();
}
output = output.Insert(Convert.ToInt32(c.Value), ".");
return(TrimZero(output));
//return output;
}
public static Big SquareRoot(Big s, Big ac)
{
return(SquareRoot(s.Value, ac.Value));
}
private static Big Power(Big a, Big b)
{
return(Power(a.Value, b.Value));
}
public static Big Factorial(Big b)
{
return(Factorial(b.Value));
}
private static Big Multiply(Big a, Big b)
{
return(Multiply(a.Value, b.Value));
}
public static bool IsEven(Big b)
{
return(IsEven(b.Value));
}
public static Big TrimZero(Big b)
{
return(TrimZero(b.Value));
}
public static bool IsOdd(Big b)
{
return(IsOdd(b.Value));
}
//METHODS
private static Big Subtract(Big b1, Big b2)
{
return(Subtract(b1.Value, b2.Value));
}