public override string /*!*/ ToString()
{
Contract.Ensures(Contract.Result <string>() != null);
String sigSize = significandSize.ToString();
String expSize = exponentSize.ToString();
if (value == "")
{
String sig = significand.ToString();
String exp = exponent.ToString();
return(String.Format("{0}{1}e{2}f{3}e{4}", isNeg ? "-" : "", sig, exp, sigSize, expSize));
}
return(String.Format("0{0}{1}e{2}", value, sigSize, expSize));
}
public String ToDecimalString(int maxDigits)
{
string s = this.mantissa.ToString();
int digits = (this.mantissa >= 0) ? s.Length : s.Length - 1;
BIM max = BIM.Pow(10, maxDigits);
BIM min = -max;
if (this.exponent >= 0)
{
if (maxDigits < digits || maxDigits - digits < this.exponent)
{
return(String.Format("{0}.0", (this.mantissa >= 0) ? max.ToString() : min.ToString()));
}
else
{
return(String.Format("{0}{1}.0", s, new string('0', this.exponent)));
}
}
else
{
int exp = -this.exponent;
if (exp < digits)
{
int intDigits = digits - exp;
if (maxDigits < intDigits)
{
return(String.Format("{0}.0", (this.mantissa >= 0) ? max.ToString() : min.ToString()));
}
else
{
int fracDigits = Math.Min(maxDigits, digits - intDigits);
return(String.Format("{0}.{1}", s.Substring(0, intDigits), s.Substring(intDigits, fracDigits)));
}
}
else
{
int fracDigits = Math.Min(maxDigits, digits);
return(String.Format("0.{0}{1}", new string('0', exp - fracDigits), s.Substring(0, fracDigits)));
}
}
}
public static BigFloat FromBigInt(BIM v, int significandSize, int exponentSize)
{
return(new BigFloat(v.ToString(), significandSize, exponentSize));
}
public static BigFloat FromBigInt(BIM v)
{
return(new BigFloat(v.ToString(), 24, 8));
}
public static BigFloat FromBigInt(BIM v, int significandSize, int exponentSize)
{
return new BigFloat(v.ToString(), significandSize, exponentSize);
}
public static BigFloat FromBigInt(BIM v) {
return new BigFloat(v.ToString(), 24, 8);
}
public string ToDecimalString()
{
Contract.Ensures(Contract.Result <string>() != null);
return(value == "" ? String.Format("{0}x2^{1}", significand.ToString(), Exponent.ToString()) : value);
}