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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| //============================================================================= | ||
| // 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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|---|---|---|
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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> | ||
|
|
||
| <param_input> | ||
| <param_input_item> | ||
| <param_name>M</param_name> | ||
| <param_description>a variable</param_description> | ||
| </param_input_item> | ||
| </param_input> | ||
|
|
||
| <param_output> | ||
| <param_output_item> | ||
| <param_name>R</param_name> | ||
| <param_description>result of sign.</param_description> | ||
| </param_output_item> | ||
| </param_output> | ||
|
|
||
| <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> | ||
|
|
||
|
|
||
| <used_function></used_function> | ||
| <bibliography></bibliography> | ||
|
|
||
| <examples> | ||
|
|
||
| <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> | ||
|
|
||
| <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> | ||
|
|
||
| <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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