public bool IsZero()
{
if (NumMonof.Count() == 0 || DenMonof.Count() == 0)
{
return(true);
}
return(NumMonof.All(x => x.IsZero()) && DenMonof.All(x => x.IsZero()));
}
public override int GetHashCode()
{
var hash = 1;
if (NumMonof.Count() != 0)
{
hash ^= NumMonof.Select(x => x.GetHashCode()).Aggregate((now, next) => now ^ next);
}
if (DenMonof.Count() != 0)
{
hash ^= DenMonof.Select(x => - x.GetHashCode()).Aggregate((now, next) => now ^ next);
}
return(hash);
}
public bool IsOne()
{
return(NumMonof.Count() == 1 && NumMonof[0].IsOne() && DenMonof.Count() == 1 && DenMonof[0].IsOne());
}
public async Task <string> GetString(bool ReturnFraction = false, bool ForDisplay = false)
{
string NumStr = "";
if (NumMonof.Count() == 0)
{
return("0");
}
else
{
NumStr = (await NumMonof.Select(async x =>
{
var str = await x.GetString(ReturnFraction, ForDisplay);
if (str == "")
{
return("");
}
else if (str.First() == '-')
{
return(str);
}
else
{
return("+" + str);
}
}).WhenAll()).Aggregate((now, next) => now + next);
if (NumStr != "" && NumStr.First() == '+')
{
NumStr = NumStr.Substring(1);
}
}
if (DenMonof.Count() == 1 && DenMonof[0].IsOne())
{
return(NumStr);
}
else
{
var DenStr = (await DenMonof.Select(async x =>
{
var str = await x.GetString(ReturnFraction, ForDisplay);
if (str == "")
{
return("");
}
else if (str.First() == '-')
{
return(str);
}
else
{
return("+" + str);
}
}).WhenAll()).Aggregate((now, next) => now + next);
if (DenStr != "" && DenStr.First() == '+')
{
DenStr = DenStr.Substring(1);
}
if (DenStr == "1" || DenStr == "")
{
return(NumStr);
}
if (NumStr.Contains("+") || NumStr.Substring(1).Contains("-"))
{
NumStr = "(" + NumStr + ")";
}
if (DenStr.Contains("+") || DenStr.Substring(1).Contains("-"))
{
DenStr = "(" + DenStr + ")";
}
return(NumStr + "/" + DenStr);
}
}
