/// <summary>
/// Converts <see cref="Interval"/> value to string with desired <paramref name="format"/>
/// for <see cref="Double"/> to <see cref="String"/> conversion and <see cref="CultureInfo.Invariant"/>
/// </summary>
/// <param name="doubleFormat"><see cref="Double"/> to <see cref="String"/> format</param>
/// <returns>String representation of this <see cref="Interval"/> instance. Boundaries
/// are formatted with <paramref name="doubleFormat"/> - for <see cref="CultureInfo.Invariant"/></returns>
public string ToStringInvariant(string doubleFormat)
{
return(string.Format(cachedStringFormat, Minimum.ToStringInvariant(doubleFormat), Maximum.ToStringInvariant(doubleFormat)));
}
