annotate armadillo-2.4.4/include/armadillo_bits/fn_diagvec.hpp @ 5:79b343f3e4b8
In thi version the problem of letters assigned to each segment has been solved.
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maxzanoni76 <max.zanoni@eecs.qmul.ac.uk> |
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Wed, 11 Apr 2012 13:48:13 +0100 |
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8b6102e2a9b0 |
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line source |
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1 // Copyright (C) 2008-2010 NICTA (www.nicta.com.au)
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2 // Copyright (C) 2008-2010 Conrad Sanderson
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3 //
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4 // This file is part of the Armadillo C++ library.
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5 // It is provided without any warranty of fitness
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6 // for any purpose. You can redistribute this file
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7 // and/or modify it under the terms of the GNU
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8 // Lesser General Public License (LGPL) as published
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9 // by the Free Software Foundation, either version 3
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10 // of the License or (at your option) any later version.
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11 // (see http://www.opensource.org/licenses for more info)
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12
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13
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14 //! \addtogroup fn_diagvec
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15 //! @{
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16
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17
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18 //! extract a diagonal from a matrix
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19 template<typename T1>
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20 arma_inline
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21 const Op<T1, op_diagvec>
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22 diagvec(const Base<typename T1::elem_type,T1>& X, const sword diag_id = 0)
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23 {
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24 arma_extra_debug_sigprint();
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25
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26 return Op<T1, op_diagvec>(X.get_ref(), ((diag_id < 0) ? -diag_id : diag_id), ((diag_id < 0) ? 1 : 0) );
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27 }
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28
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29
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30
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31 //! @}
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