/// <summary>
/// Compares two
/// <see cref="Rational"/>
/// instances, returning true if they are mathematically
/// equivalent.
/// </summary>
/// <param name="obj">
/// the
/// <see cref="Rational"/>
/// to compare this instance to.
/// </param>
/// <returns>
/// true if instances are mathematically equivalent, otherwise false. Will also
/// return false if <code>obj</code> is not an instance of
/// <see cref="Rational"/>
/// .
/// </returns>
public override bool Equals(object obj)
{
if (obj == null || !(obj is Com.Drew.Lang.Rational))
{
return(false);
}
Com.Drew.Lang.Rational that = (Com.Drew.Lang.Rational)obj;
return(this.DoubleValue() == that.DoubleValue());
}
public virtual string ToSimpleString(bool allowDecimal)
{
if (_denominator == 0 && _numerator != 0)
{
return(ToString());
}
else
{
if (IsInteger())
{
return(Sharpen.Extensions.ToString(IntValue()));
}
else
{
if (_numerator != 1 && _denominator % _numerator == 0)
{
// common factor between denominator and numerator
long newDenominator = _denominator / _numerator;
return(new Com.Drew.Lang.Rational(1, newDenominator).ToSimpleString(allowDecimal));
}
else
{
Com.Drew.Lang.Rational simplifiedInstance = GetSimplifiedInstance();
if (allowDecimal)
{
string doubleString = simplifiedInstance.DoubleValue().ToString();
if (doubleString.Length < 5)
{
return(doubleString);
}
}
return(simplifiedInstance.ToString());
}
}
}
}