Fixed missing copyright notice.

1 files changed, 147 insertions, 146 deletions

diff --git a/src/c/elementaryFunctions/acos/cacoss.c b/src/c/elementaryFunctions/acos/cacoss.c
index 1059c8c3..97420313 100644
--- a/src/c/elementaryFunctions/acos/cacoss.c
+++ b/src/c/elementaryFunctions/acos/cacoss.c
@@ -1,146 +1,147 @@
-/*
- *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
- *  Copyright (C) 2007-2008 - INRIA - Bruno JOFRET
- *
- *  This file must be used under the terms of the CeCILL.
- *  This source file is licensed as described in the file COPYING, which
- *  you should have received as part of this distribution.  The terms
- *  are also available at
- *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
- *
- */
-
-/*
- * This fonction is a translation of fortran wacos write by Bruno Pincon <Bruno.Pincon@iecn.u-nancy.fr>
- *     REFERENCE
- *        This is a Fortran-77 translation of an algorithm by
- *        T.E. Hull, T. F. Fairgrieve and P.T.P. Tang which
- *        appears in their article :
- *          "Implementing the Complex Arcsine and Arccosine
- *           Functions Using Exception Handling", ACM, TOMS,
- *           Vol 23, No. 3, Sept 1997, p. 299-335
- */
-
-#include "acos.h"
-#include "atan.h"
-#include "log.h"
-#include "log1p.h"
-#include "sqrt.h"
-#include "abs.h"
-#include "lapack.h"
-#include "min.h"
-#include "max.h"
-
-#define localSign(x) (x>0 ? 1.0f : -1.0f)
-
-floatComplex		cacoss(floatComplex z) {
-	static float sfltPi		= 3.1415926535897932384626433f;
-	static float sfltPi_2		= 1.5707963267948966192313216f;
-	static float sfltLn2		= 0.6931471805599453094172321f;
-	static float sfltAcross	= 1.5f;
-	static float sfltBcross	= 0.6417f;
-
-	float fltLsup = ssqrts((float) getOverflowThreshold())/8.0f;
-	float fltLinf = 4.0f * ssqrts((float) getUnderflowThreshold());
-	float fltEpsm = ssqrts((float) getRelativeMachinePrecision());
-
-	float fltAbsReal	= sabss(creals(z));
-	float fltAbsImg		= sabss(cimags(z));
-	float fltSignReal	= localSign(creals(z));
-	float fltSignImg	= localSign(cimags(z));
-
-	float fltR = 0, fltS = 0, fltA = 0, fltB = 0;
-
-	float fltTemp = 0;
-
-	float _pfltReal = 0;
-	float _pfltImg = 0;
-
-	if( min(fltAbsReal, fltAbsImg) > fltLinf && max(fltAbsReal, fltAbsImg) <= fltLsup)
-	  {/* we are in the safe region */
-		fltR = ssqrts( (fltAbsReal + 1 )*(fltAbsReal + 1 ) + fltAbsImg*fltAbsImg);
-		fltS = ssqrts( (fltAbsReal - 1 )*(fltAbsReal - 1 ) + fltAbsImg*fltAbsImg);
-		fltA = 0.5f * ( fltR + fltS );
-		fltB = fltAbsReal / fltA;
-
-
-		/* compute the real part */
-		if(fltB <= sfltBcross)
-			_pfltReal = sacoss(fltB);
-		else if( fltAbsReal <= 1)
-			_pfltReal = satans(ssqrts(0.5f * (fltA + fltAbsReal) * (fltAbsImg*fltAbsImg / (fltR + (fltAbsReal + 1)) + (fltS + (1 - fltAbsReal)))) / fltAbsReal);
-		else
-			_pfltReal = satans((fltAbsImg * ssqrts(0.5f * ((fltA + fltAbsReal) / (fltR + (fltAbsReal + 1)) + (fltA + fltAbsReal) / (fltS + (fltAbsReal - 1))))) / fltAbsReal);
-
-		/* compute the imaginary part */
-		if(fltA <= sfltAcross)
-		{
-			float fltImg1 = 0;
-
-			if(fltAbsReal < 1)
-			  /* Am1 = 0.5d0*((y**2)/(R+(x+1.d0))+(y**2)/(S+(1.d0-x))) */
-				fltImg1 = 0.5f * (fltAbsImg*fltAbsImg / (fltR + (fltAbsReal + 1)) + fltAbsImg*fltAbsImg / (fltS + (1 - fltAbsReal)));
-			else
-			  /* Am1 = 0.5d0*((y**2)/(R+(x+1.d0))+(S+(x-1.d0))) */
-				fltImg1 = 0.5f * (fltAbsImg*fltAbsImg / (fltR + (fltAbsReal + 1)) + (fltS + (fltAbsReal - 1)));
-			/* ai = logp1(Am1 + sqrt(Am1*(A+1.d0))) */
-			fltTemp = fltImg1 + ssqrts(fltImg1 *( fltA + 1));
-			_pfltImg = slog1ps(fltTemp);
-		}
-		else
-		  /* ai = log(A + sqrt(A**2 - 1.d0)) */
-			_pfltImg = slogs(fltA + ssqrts(fltA*fltA - 1));
-	}
-	else
-	  {/* evaluation in the special regions ... */
-		if(fltAbsImg <= fltEpsm * sabss(fltAbsReal - 1))
-		{
-			if(fltAbsReal < 1)
-			{
-				_pfltReal	= sacoss(fltAbsReal);
-				_pfltImg	= fltAbsImg / ssqrts((1 + fltAbsReal) * (1 - fltAbsReal));
-			}
-			else
-			{
-				_pfltReal = 0;
-				if(fltAbsReal <= fltLsup)
-				{
-					fltTemp		= (fltAbsReal - 1) + ssqrts((fltAbsReal - 1) * (fltAbsReal + 1));
-					_pfltImg	= slog1ps(fltTemp);
-				}
-				else
-					_pfltImg	= sfltLn2 + slogs(fltAbsReal);
-			}
-		}
-		else if(fltAbsImg < fltLinf)
-		{
-			_pfltReal	= ssqrts(fltAbsImg);
-			_pfltImg	= _pfltReal;
-		}
-		else if((fltEpsm * fltAbsImg - 1 >= fltAbsReal))
-		{
-			_pfltReal	= sfltPi_2;
-			_pfltImg	= sfltLn2 + slogs(fltAbsImg);
-		}
-		else if(fltAbsReal > 1)
-		{
-			_pfltReal	= satans(fltAbsImg / fltAbsReal);
-			fltTemp		= (fltAbsReal / fltAbsImg)*(fltAbsReal / fltAbsImg);
-			_pfltImg	= sfltLn2 + slogs(fltAbsImg) + 0.5f * slog1ps(fltTemp);
-		}
-		else
-		{
-			float fltTemp2 = ssqrts(1 + fltAbsImg*fltAbsImg);
-			_pfltReal	= sfltPi_2;
-			fltTemp		= 2 * fltAbsImg * (fltAbsImg + fltTemp2);
-			_pfltImg	= 0.5f * slog1ps(fltTemp);
-		}
-	}
-	if(fltSignReal < 0)
-		_pfltReal = sfltPi - _pfltReal;
-
-	if(fltAbsImg != 0 || fltSignReal < 0)
-		_pfltImg = - fltSignImg * _pfltImg;
-
-	return FloatComplex(_pfltReal, _pfltImg);
-}
+/*

+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab

+ *  Copyright (C) 2007-2008 - INRIA - Bruno JOFRET

+ *  Copyright (C) Bruno Pincon

+ *

+ *  This file must be used under the terms of the CeCILL.

+ *  This source file is licensed as described in the file COPYING, which

+ *  you should have received as part of this distribution.  The terms

+ *  are also available at

+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt

+ *

+ */

+

+/*

+ * This fonction is a translation of fortran wacos write by Bruno Pincon <Bruno.Pincon@iecn.u-nancy.fr>

+ *     REFERENCE

+ *        This is a Fortran-77 translation of an algorithm by

+ *        T.E. Hull, T. F. Fairgrieve and P.T.P. Tang which

+ *        appears in their article :

+ *          "Implementing the Complex Arcsine and Arccosine

+ *           Functions Using Exception Handling", ACM, TOMS,

+ *           Vol 23, No. 3, Sept 1997, p. 299-335

+ */

+

+#include "acos.h"

+#include "atan.h"

+#include "log.h"

+#include "log1p.h"

+#include "sqrt.h"

+#include "abs.h"

+#include "lapack.h"

+#include "min.h"

+#include "max.h"

+

+#define localSign(x) (x>0 ? 1.0f : -1.0f)

+

+floatComplex		cacoss(floatComplex z) {

+	static float sfltPi		= 3.1415926535897932384626433f;

+	static float sfltPi_2		= 1.5707963267948966192313216f;

+	static float sfltLn2		= 0.6931471805599453094172321f;

+	static float sfltAcross	= 1.5f;

+	static float sfltBcross	= 0.6417f;

+

+	float fltLsup = ssqrts((float) getOverflowThreshold())/8.0f;

+	float fltLinf = 4.0f * ssqrts((float) getUnderflowThreshold());

+	float fltEpsm = ssqrts((float) getRelativeMachinePrecision());

+

+	float fltAbsReal	= sabss(creals(z));

+	float fltAbsImg		= sabss(cimags(z));

+	float fltSignReal	= localSign(creals(z));

+	float fltSignImg	= localSign(cimags(z));

+

+	float fltR = 0, fltS = 0, fltA = 0, fltB = 0;

+

+	float fltTemp = 0;

+

+	float _pfltReal = 0;

+	float _pfltImg = 0;

+

+	if( min(fltAbsReal, fltAbsImg) > fltLinf && max(fltAbsReal, fltAbsImg) <= fltLsup)

+	  {/* we are in the safe region */

+		fltR = ssqrts( (fltAbsReal + 1 )*(fltAbsReal + 1 ) + fltAbsImg*fltAbsImg);

+		fltS = ssqrts( (fltAbsReal - 1 )*(fltAbsReal - 1 ) + fltAbsImg*fltAbsImg);

+		fltA = 0.5f * ( fltR + fltS );

+		fltB = fltAbsReal / fltA;

+

+

+		/* compute the real part */

+		if(fltB <= sfltBcross)

+			_pfltReal = sacoss(fltB);

+		else if( fltAbsReal <= 1)

+			_pfltReal = satans(ssqrts(0.5f * (fltA + fltAbsReal) * (fltAbsImg*fltAbsImg / (fltR + (fltAbsReal + 1)) + (fltS + (1 - fltAbsReal)))) / fltAbsReal);

+		else

+			_pfltReal = satans((fltAbsImg * ssqrts(0.5f * ((fltA + fltAbsReal) / (fltR + (fltAbsReal + 1)) + (fltA + fltAbsReal) / (fltS + (fltAbsReal - 1))))) / fltAbsReal);

+

+		/* compute the imaginary part */

+		if(fltA <= sfltAcross)

+		{

+			float fltImg1 = 0;

+

+			if(fltAbsReal < 1)

+			  /* Am1 = 0.5d0*((y**2)/(R+(x+1.d0))+(y**2)/(S+(1.d0-x))) */

+				fltImg1 = 0.5f * (fltAbsImg*fltAbsImg / (fltR + (fltAbsReal + 1)) + fltAbsImg*fltAbsImg / (fltS + (1 - fltAbsReal)));

+			else

+			  /* Am1 = 0.5d0*((y**2)/(R+(x+1.d0))+(S+(x-1.d0))) */

+				fltImg1 = 0.5f * (fltAbsImg*fltAbsImg / (fltR + (fltAbsReal + 1)) + (fltS + (fltAbsReal - 1)));

+			/* ai = logp1(Am1 + sqrt(Am1*(A+1.d0))) */

+			fltTemp = fltImg1 + ssqrts(fltImg1 *( fltA + 1));

+			_pfltImg = slog1ps(fltTemp);

+		}

+		else

+		  /* ai = log(A + sqrt(A**2 - 1.d0)) */

+			_pfltImg = slogs(fltA + ssqrts(fltA*fltA - 1));

+	}

+	else

+	  {/* evaluation in the special regions ... */

+		if(fltAbsImg <= fltEpsm * sabss(fltAbsReal - 1))

+		{

+			if(fltAbsReal < 1)

+			{

+				_pfltReal	= sacoss(fltAbsReal);

+				_pfltImg	= fltAbsImg / ssqrts((1 + fltAbsReal) * (1 - fltAbsReal));

+			}

+			else

+			{

+				_pfltReal = 0;

+				if(fltAbsReal <= fltLsup)

+				{

+					fltTemp		= (fltAbsReal - 1) + ssqrts((fltAbsReal - 1) * (fltAbsReal + 1));

+					_pfltImg	= slog1ps(fltTemp);

+				}

+				else

+					_pfltImg	= sfltLn2 + slogs(fltAbsReal);

+			}

+		}

+		else if(fltAbsImg < fltLinf)

+		{

+			_pfltReal	= ssqrts(fltAbsImg);

+			_pfltImg	= _pfltReal;

+		}

+		else if((fltEpsm * fltAbsImg - 1 >= fltAbsReal))

+		{

+			_pfltReal	= sfltPi_2;

+			_pfltImg	= sfltLn2 + slogs(fltAbsImg);

+		}

+		else if(fltAbsReal > 1)

+		{

+			_pfltReal	= satans(fltAbsImg / fltAbsReal);

+			fltTemp		= (fltAbsReal / fltAbsImg)*(fltAbsReal / fltAbsImg);

+			_pfltImg	= sfltLn2 + slogs(fltAbsImg) + 0.5f * slog1ps(fltTemp);

+		}

+		else

+		{

+			float fltTemp2 = ssqrts(1 + fltAbsImg*fltAbsImg);

+			_pfltReal	= sfltPi_2;

+			fltTemp		= 2 * fltAbsImg * (fltAbsImg + fltTemp2);

+			_pfltImg	= 0.5f * slog1ps(fltTemp);

+		}

+	}

+	if(fltSignReal < 0)

+		_pfltReal = sfltPi - _pfltReal;

+

+	if(fltAbsImg != 0 || fltSignReal < 0)

+		_pfltImg = - fltSignImg * _pfltImg;

+

+	return FloatComplex(_pfltReal, _pfltImg);

+}