/*************************************************************************

Copyright (c) 2005-2007, Sergey Bochkanov (ALGLIB project).



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modification, are permitted provided that the following conditions are

met:



- Redistributions of source code must retain the above copyright

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- Redistributions in binary form must reproduce the above copyright

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  in this license in the documentation and/or other materials

  provided with the distribution.



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  contributors may be used to endorse or promote products derived from

  this software without specific prior written permission.



THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

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*************************************************************************/



#ifndef _blas_h

#define _blas_h



#include "capd/alglib/ap.h"


double vectornorm2(const ap::real_1d_array& x, int i1, int i2);





int vectoridxabsmax(const ap::real_1d_array& x, int i1, int i2);





int columnidxabsmax(const ap::real_2d_array& x, int i1, int i2, int j);





int rowidxabsmax(const ap::real_2d_array& x, int j1, int j2, int i);





double upperhessenberg1norm(const ap::real_2d_array& a,

     int i1,

     int i2,

     int j1,

     int j2,

     ap::real_1d_array& work);





void copymatrix(const ap::real_2d_array& a,

     int is1,

     int is2,

     int js1,

     int js2,

     ap::real_2d_array& b,

     int id1,

     int id2,

     int jd1,

     int jd2);





void inplacetranspose(ap::real_2d_array& a,

     int i1,

     int i2,

     int j1,

     int j2,

     ap::real_1d_array& work);





void copyandtranspose(const ap::real_2d_array& a,

     int is1,

     int is2,

     int js1,

     int js2,

     ap::real_2d_array& b,

     int id1,

     int id2,

     int jd1,

     int jd2);





void matrixvectormultiply(const ap::real_2d_array& a,

     int i1,

     int i2,

     int j1,

     int j2,

     bool trans,

     const ap::real_1d_array& x,

     int ix1,

     int ix2,

     double alpha,

     ap::real_1d_array& y,

     int iy1,

     int iy2,

     double beta);





double pythag2(double x, double y);





void matrixmatrixmultiply(const ap::real_2d_array& a,

     int ai1,

     int ai2,

     int aj1,

     int aj2,

     bool transa,

     const ap::real_2d_array& b,

     int bi1,

     int bi2,

     int bj1,

     int bj2,

     bool transb,

     double alpha,

     ap::real_2d_array& c,

     int ci1,

     int ci2,

     int cj1,

     int cj2,

     double beta,

     ap::real_1d_array& work);





#endif

