/// <summary>
/// Compute the arc tangent result.
/// </summary>
/// <param name="multiplicand">The multiplicand.</param>
/// <param name="reciprocal">The reciprocal.</param>
public SuperDecimal ArcTan(UInt32 multiplicand, UInt32 reciprocal)
{
SuperDecimal result = new SuperDecimal(0, _decimalCount);
SuperDecimal X = new SuperDecimal(multiplicand, _decimalCount);
X = X / reciprocal;
reciprocal *= reciprocal;
result.AssignValue(X);
SuperDecimal term = new SuperDecimal(0, _decimalCount);
UInt32 divisor = 1;
bool subtractTerm = true;
while (true)
{
X = X / reciprocal;
term.AssignValue(X);
divisor += 2;
term = term / divisor;
if (term.IsZero())
{
break;
}
if (subtractTerm)
{
result = result - term;
}
else
{
result = result + term;
}
subtractTerm = !subtractTerm;
}
return(result);
}
public override string ToString()
{
SuperDecimal temp = new SuperDecimal(0, _decimalCount);
temp.AssignValue(this);
StringBuilder sb = new StringBuilder();
sb.Append(temp.Array[0]);
sb.Append(System.Globalization.CultureInfo.CurrentCulture.NumberFormat.CurrencyDecimalSeparator);
int digitCount = 0;
while (digitCount < _decimalCount)
{
temp.Array[0] = 0;
temp = temp * 100000;
sb.AppendFormat("{0:D5}", temp.Array[0]);
digitCount += 5;
}
return(sb.ToString());
}
