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- Boolean sparse reading (Scilab gateway)
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- Handle reading (Scilab gateway)
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- Integer Precision (Scilab gateway)
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- nbInputArgument (Scilab gateway)
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- Polynomial Symbolic Variable (Scilab gateway)
- Polynomial reading (Scilab gateway)
- Polynomial writing (Scilab gateway)
- Sparse matrix reading (Scilab gateway)
- Sparse writing (Scilab gateway)
- String reading (Scilab gateway)
- String writing (Scilab gateway)
Please note that the recommended version of Scilab is 2024.1.0. This page might be outdated.
However, this page did not exist in the previous stable version.
Sparse writing (Scilab gateway)
How to write sparse matrix in a gateway.
Syntax
Input argument profile:
SciErr createSparseMatrix(void* _pvCtx, int _iVar, int _iRows, int _iCols, int _iNbItem, const int* _piNbItemRow, const int* _piColPos, const double* _pdblReal)
SciErr createComplexSparseMatrix(void* _pvCtx, int _iVar, int _iRows, int _iCols, int _iNbItem, const int* _piNbItemRow, const int* _piColPos, const double* _pdblReal, const double* _pdblImg)
Named variable profile:
SciErr createNamedSparseMatrix(void* _pvCtx, const char* _pstName, int _iRows, int _iCols, int _iNbItem, const int* _piNbItemRow, const int* _piColPos, const double* _pdblReal)
SciErr createNamedComplexSparseMatrix(void* _pvCtx, const char* _pstName, int _iRows, int _iCols, int _iNbItem, const int* _piNbItemRow, const int* _piColPos, const double* _pdblReal, const double* _pdblImg)
Arguments
- _pvCtx
Scilab environment pointer, pass in "pvApiCtx" provided by api_scilab.h
- _iVar
Position in the Scilab memory where you want to put the variable.
- _pstName
Name of the variable for "named" functions.
- _iRows
Number of rows of the new variable.
- _iCols
Number of columns of the new variable.
- _iNbItem
Number of non zero itmes in the sparse.
- _piNbItemRow
Number of item in each rows (size: _iRows).
- _piColPos
Column position for each item (size: _iNbItem).
- _pdblReal
Address of real data array (size: _iNbItem).
- _pdblImg
Address of imaginary data array (size: _iNbItem).
This argument does not exist with createSparseMatrix and createNamedSparseMatrix.
- SciErr
Error structure where is stored errors messages history and first error number.
Syntax
Input argument profile:
SciErr allocSparseMatrix(void* _pvCtx, int _iVar, int _iRows, int _iCols, int _iNbItem, int** _piNbItemRow, int** _piColPos, double** _pdblReal)
SciErr allocComplexSparseMatrix(void* _pvCtx, int _iVar, int _iRows, int _iCols, int _iNbItem, int** _piNbItemRow, int** _piColPos, double** _pdblReal, double** _pdblImg)
Arguments
- _pvCtx
Scilab environment pointer, pass in "pvApiCtx" provided by api_scilab.h.
- _iVar
Position in the Scilab memory where you want to put the variable.
- _iRows
Number of rows of the new variable.
- _iCols
Number of columns of the new variable.
- _iNbItem
Number of non zero itmes in the sparse.
- _piNbItemRow
Return address of number of item in each rows (size: _iRows).
- _piColPos
Return address of column position for each item (size: _iNbItem).
- _pdblReal
Address of real data array (size: _iNbItem).
- _pdblImg
Address of imaginary data array (size: _iNbItem).
This argument does not exist with allocSparseMatrix.
- SciErr
Error structure where is stored errors messages history and first error number.
Description
This help describes how to add sparse matrix.
Two types of functions can be used to write in the memory of Scilab.
Gateway Source
#include "api_scilab.h" int write_sparse(char *fname,void* pvApiCtx) { SciErr sciErr; int piNbItemRow[] = {1,2,1}; int piColPos[] = {8,4,7,2}; double pdblSReal[] = {1,2,3,4}; double pdblSImg[] = {4,3,2,1}; int iNbItem = 4; sciErr = createComplexSparseMatrix(pvApiCtx, nbInputArgument(pvApiCtx) + 1, 3, 10, iNbItem, piNbItemRow, piColPos, pdblSReal, pdblSImg); if(sciErr.iErr) { printError(&sciErr, 0); return 0; } AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1; return 0; }
Scilab test script
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