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InverseCotangent Correction #3

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InverseCotangent Correction #3

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8 changes: 4 additions & 4 deletions src/app/MathNet.Iridium/Library/Complex.cs
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Original file line number Diff line number Diff line change
@@ -1,10 +1,10 @@
//-----------------------------------------------------------------------
// <copyright file="Complex.cs" company="Math.NET Project">
// Copyright (c) 2002-2009, Christoph R�egg, Joannes Vermorel.
// Copyright (c) 2002-2009, Christoph Rüegg, Joannes Vermorel.
// All Right Reserved.
// </copyright>
// <author>
// Christoph R�egg, http://christoph.ruegg.name
// Christoph Rüegg, http://christoph.ruegg.name
// Joannes Vermorel, http://www.vermorel.com
// </author>
// <product>
Expand Down Expand Up @@ -1095,8 +1095,8 @@ public static implicit operator Complex(double number)
Complex
InverseCotangent()
{
Complex iz = new Complex(-_imag, _real); // I*this
return (new Complex(0, 0.5) * ((1 + iz).NaturalLogarithm() - (1 - iz).NaturalLogarithm())) + (Math.PI / 2);
Complex iz = new Complex(0, 1) / this;
return new Complex(0, 0.5) * ((1 - iz).NaturalLogarithm() - (1 + iz).NaturalLogarithm());
}

/// <summary>
Expand Down