/// <summary>
/// Computes the area of the function under the selected <see cref="Range"/>.
/// The computed value will be available at this object's <see cref="Area"/>.
/// </summary>
///
/// <remarks>
/// If the integration method fails, the reason will be available at <see cref="Status"/>.
/// </remarks>
///
/// <returns>
/// True if the integration method succeeds, false otherwise.
/// </returns>
///
public bool Compute()
{
Status = InfiniteAdaptiveGaussKronrodStatus.Success;
int errorCode;
double a = this.Range.Min;
double b = this.Range.Max;
if (!Double.IsInfinity(a) && !Double.IsInfinity(b))
{
NonAdaptiveGaussKronrod.qng_(Function, a, b, ToleranceAbsolute, ToleranceRelative,
out result, out error, out evaluations, out errorCode);
}
else
{
double bound = 0;
int inf;
int last;
if (Double.IsInfinity(a) && Double.IsInfinity(b))
{
inf = 2;
}
else if (Double.IsInfinity(a))
{
bound = b;
inf = -1;
}
else // if (Double.IsInfinity(b))
{
bound = a;
inf = 1;
}
qagi_(Function, bound, inf, ToleranceAbsolute, ToleranceRelative,
out result, out error, out evaluations, out errorCode,
limit, lenw, out last, iwork, work);
}
if (errorCode == 6)
{
throw new InvalidOperationException("Invalid inputs. If this error happens, the "
+ "framework didn't check for inputs correctly. If you encounter this error, "
+ "please feel in a bug report at the framework's issue tracking system.");
}
Status = (InfiniteAdaptiveGaussKronrodStatus)errorCode;
return Status == InfiniteAdaptiveGaussKronrodStatus.Success;
}
/// <summary>
/// Creates a new object that is a copy of the current instance.
/// </summary>
///
/// <returns>
/// A new object that is a copy of this instance.
/// </returns>
///
public object Clone()
{
NonAdaptiveGaussKronrod clone = new NonAdaptiveGaussKronrod(
this.Function, this.Range.Min, this.Range.Max);
clone.error = error;
clone.result = result;
clone.ToleranceAbsolute = ToleranceAbsolute;
clone.ToleranceRelative = ToleranceRelative;
return(clone);
}