//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));
}
/// <summary>
/// Gets the number of minimum bits required to represent this integer. Of course, all integers take the same space but a lower integer can be represented by
/// less bits.
/// </summary>
/// <param name="number"> the integer </param>
/// <returns> the bits required to represent said integer. if negative, will return 32 as negative values require the flag. input the absolute value
/// if you wish the minimum bits if the number was not negative to be returned. </returns>
public static int GetIntMinimumBits(int number)
{
if (number < 0)
{
return(32);
}
for (int i = 31; i >= 0; i--)
{
if (number % QMath.Pow(2, i) != number)
{
return(i + 1); //TODO Left here.
}
}
return(1);
}