//TODO Switch to latest versions of .NET and implement a BigInt Version.
/// <summary>
/// Rounds the given value to the specified number of significant figures/digits.
/// </summary>
/// <param name="val"> The value to be rounded </param>
/// <param name="digits"> the number of significant figures </param>
/// <returns> the rounded number </returns>
public static double RoundToSignificantDigits(double val, int digits)
{
if (val == 0)
{
return(0);
}
double scale = QMath.Pow(10, QMath.Floor(QMath.Log10(QMath.Abs(val))) + 1);
return(scale * QMath.Round(val / scale, digits));
}