/*static function*/
public static string tostring(rational a)
{
if (a.sign == 10)
{
return("indifinite(未定義)");
}
if (a.sign == 11)
{
return("impossible(不可)");
}
if (a.sign == 12)
{
return("any(不定)");
}
if (a.sign == 8)
{
return("+∞");
}
if (a.sign == -8)
{
return("-∞");
}
if (a.sign == 18)
{
return("±∞");
}
if (a.sign == 2)
{
return("+0(無限小)"); /*未設定*/
}
if (a.sign == -2)
{
return("-0(無限小)"); /*未設定*/
}
if (a.sign == 0)
{
return("0");
}
string den = "";
if (a.denom != 1)
{
den = "/" + a.denom.ToString();
}
string exp = "";
if (a.expon != 0)
{
exp = "×10^" + a.expon.ToString();
}
return(((a.sign == 1)?"":"-") + a.numer.ToString() + den + exp);
}
public rational(decimal denominator, decimal numerator)
{
rational a = new rational(denominator, numerator, 0, "+");
numer = a.numer; denom = a.denom; expon = a.expon; sign = a.sign;
}
