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//============================================================================= | ||
// Copyright (c) 2016-present Allan CORNET (Nelson) | ||
//============================================================================= | ||
// This file is part of the Nelson. | ||
//============================================================================= | ||
// LICENCE_BLOCK_BEGIN | ||
// This program is free software; you can redistribute it and/or | ||
// modify it under the terms of the GNU Lesser General Public | ||
// License as published by the Free Software Foundation; either | ||
// version 2.1 of the License, or (at your option) any later version. | ||
// | ||
// Alternatively, you can redistribute it and/or | ||
// modify it under the terms of the GNU General Public License as | ||
// published by the Free Software Foundation; either version 2 of | ||
// the License, or (at your option) any later version. | ||
// | ||
// This program is distributed in the hope that it will be useful, | ||
// but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
// GNU Lesser General Public License for more details. | ||
// | ||
// You should have received a copy of the GNU Lesser General Public | ||
// License along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
// LICENCE_BLOCK_END | ||
//============================================================================= | ||
#include "signBuiltin.hpp" | ||
#include "Error.hpp" | ||
#include "OverloadFunction.hpp" | ||
#include "OverloadRequired.hpp" | ||
#include "Sign.hpp" | ||
//============================================================================= | ||
using namespace Nelson; | ||
//============================================================================= | ||
ArrayOfVector | ||
Nelson::ElementaryFunctionsGateway::signBuiltin( | ||
Evaluator* eval, int nLhs, const ArrayOfVector& argIn) | ||
{ | ||
ArrayOfVector retval; | ||
bool bSuccess = false; | ||
nargincheck(argIn, 1, 1); | ||
nargoutcheck(nLhs, 0, 1); | ||
if (eval->mustOverloadBasicTypes()) { | ||
retval = OverloadFunction(eval, nLhs, argIn, "sign", bSuccess); | ||
} | ||
if (!bSuccess) { | ||
bool needToOverload = false; | ||
ArrayOf res = Sign(argIn[0], needToOverload); | ||
if (needToOverload) { | ||
retval = OverloadFunction(eval, nLhs, argIn, "sign"); | ||
} else { | ||
retval << res; | ||
} | ||
} | ||
return retval; | ||
} | ||
//============================================================================= |
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modules/elementary_functions/builtin/include/signBuiltin.hpp
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//============================================================================= | ||
// Copyright (c) 2016-present Allan CORNET (Nelson) | ||
//============================================================================= | ||
// This file is part of the Nelson. | ||
//============================================================================= | ||
// LICENCE_BLOCK_BEGIN | ||
// This program is free software; you can redistribute it and/or | ||
// modify it under the terms of the GNU Lesser General Public | ||
// License as published by the Free Software Foundation; either | ||
// version 2.1 of the License, or (at your option) any later version. | ||
// | ||
// Alternatively, you can redistribute it and/or | ||
// modify it under the terms of the GNU General Public License as | ||
// published by the Free Software Foundation; either version 2 of | ||
// the License, or (at your option) any later version. | ||
// | ||
// This program is distributed in the hope that it will be useful, | ||
// but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
// GNU Lesser General Public License for more details. | ||
// | ||
// You should have received a copy of the GNU Lesser General Public | ||
// License along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
// LICENCE_BLOCK_END | ||
//============================================================================= | ||
#pragma once | ||
//============================================================================= | ||
#include "ArrayOf.hpp" | ||
#include "Evaluator.hpp" | ||
//============================================================================= | ||
namespace Nelson { | ||
//============================================================================= | ||
namespace ElementaryFunctionsGateway { | ||
ArrayOfVector | ||
signBuiltin(Evaluator* eval, int nLhs, const ArrayOfVector& argIn); | ||
} | ||
//============================================================================= | ||
} // namespace Nelson | ||
//============================================================================= |
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<?xml version="1.0" encoding="UTF-8"?> | ||
<xmldoc> | ||
<copyright>SAME AS NELSON SOFTWARE</copyright> | ||
|
||
<language>en_US</language> | ||
<keyword>sign</keyword> | ||
<short_description>Find the sign function of a number.</short_description> | ||
|
||
<syntax> | ||
<syntax_item>R = sign(M)</syntax_item> | ||
</syntax> | ||
|
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<param_input> | ||
<param_input_item> | ||
<param_name>M</param_name> | ||
<param_description>a variable</param_description> | ||
</param_input_item> | ||
</param_input> | ||
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<param_output> | ||
<param_output_item> | ||
<param_name>R</param_name> | ||
<param_description>result of sign.</param_description> | ||
</param_output_item> | ||
</param_output> | ||
|
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<description> | ||
<p><b>sign</b> find the sign function of a number.</p> | ||
<p>-1 if the corresponding element of M is less than 0.</p> | ||
<p>0 if the corresponding element of M equals 0.</p> | ||
<p>1 if the corresponding element of M is greater than 0.</p> | ||
<p>If input argument is a complex number, <b>sign</b> computes <b>M ./ abs(M)</b>.</p> | ||
</description> | ||
|
||
|
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<used_function></used_function> | ||
<bibliography></bibliography> | ||
|
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<examples> | ||
|
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<example_item> | ||
<example_item_type>nelson</example_item_type> | ||
<example_item_description></example_item_description> | ||
<example_item_data> | ||
<![CDATA[V = [-1 0 15 NaN Inf]; | ||
sign(V)]]> | ||
</example_item_data> | ||
</example_item> | ||
</examples> | ||
|
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<see_also> | ||
<see_also_item> | ||
<link linkend="${elementary_functions}conj">conj</link> | ||
</see_also_item> | ||
<see_also_item> | ||
<link linkend="${elementary_functions}abs">abs</link> | ||
</see_also_item> | ||
</see_also> | ||
|
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<history> | ||
<history_item> | ||
<history_version>1.0.0</history_version> | ||
<history_description>initial version</history_description> | ||
</history_item> | ||
</history> | ||
|
||
<authors> | ||
<author_item>Allan CORNET</author_item> | ||
</authors> | ||
</xmldoc> |
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