Scilab-Branch-5.3-GIT
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polynom example
Polynom use case.
Description
This example shows how to get a polynom variable and return it to Scilab.
Gateway Source
int polyExample(char *fname,unsigned long fname_len) { SciErr sciErr; int* piAddr = NULL; int iType = 0; int iRet = 0; CheckRhs(1,1); CheckLhs(0,1); sciErr = getVarAddressFromPosition(pvApiCtx, 1, &piAddr); if(sciErr.iErr) { printError(&sciErr, 0); return 0; } if(isPolyType(pvApiCtx, piAddr)) { char pstVarName[64]; int iLen = 0; sciErr = getPolyVariableName(pvApiCtx, piAddr, pstVarName, &iLen); if(sciErr.iErr) { printError(&sciErr, 0); return sciErr.iErr; } if(isScalar(pvApiCtx, piAddr)) { int iNbCoef = 0; double* pdblReal = NULL; double* pdblImg = NULL; if(isVarComplex(pvApiCtx, piAddr)) { iRet = getAllocatedSingleComplexPoly(pvApiCtx, piAddr, &iNbCoef, &pdblReal, &pdblImg); if(iRet) { freeAllocatedSingleComplexPoly(pdblReal, pdblImg); return iRet; } sciErr = createComplexMatrixOfPoly(pvApiCtx, Rhs + 1, pstVarName, 1, 1, &iNbCoef, &pdblReal, &pdblImg); if(sciErr.iErr) { freeAllocatedSingleComplexPoly(pdblReal, pdblImg); printError(&sciErr, 0); return sciErr.iErr; } freeAllocatedSingleComplexPoly(pdblReal, pdblImg); } else { iRet = getAllocatedSinglePoly(pvApiCtx, piAddr, &iNbCoef, &pdblReal); if(iRet) { freeAllocatedSinglePoly(pdblReal); return iRet; } sciErr = createMatrixOfPoly(pvApiCtx, Rhs + 1, pstVarName, 1, 1, &iNbCoef, &pdblReal); if(sciErr.iErr) { freeAllocatedSinglePoly(pdblReal); printError(&sciErr, 0); return sciErr.iErr; } freeAllocatedSinglePoly(pdblReal); } } else { int iRows = 0; int iCols = 0; int* piNbCoef = NULL; double** pdblReal = NULL; double** pdblImg = NULL; if(isVarComplex(pvApiCtx, piAddr)) { iRet = getAllocatedMatrixOfComplexPoly(pvApiCtx, piAddr, &iRows, &iCols, &piNbCoef, &pdblReal, &pdblImg); if(iRet) { freeAllocatedMatrixOfComplexPoly(iRows, iCols, piNbCoef, pdblReal, pdblImg); return iRet; } sciErr = createComplexMatrixOfPoly(pvApiCtx, Rhs + 1, pstVarName, iRows, iCols, piNbCoef, pdblReal, pdblImg); if(sciErr.iErr) { freeAllocatedMatrixOfComplexPoly(iRows, iCols, piNbCoef, pdblReal, pdblImg); printError(&sciErr, 0); return sciErr.iErr; } freeAllocatedMatrixOfComplexPoly(iRows, iCols, piNbCoef, pdblReal, pdblImg); } else { iRet = getAllocatedMatrixOfPoly(pvApiCtx, piAddr, &iRows, &iCols, &piNbCoef, &pdblReal); if(iRet) { freeAllocatedMatrixOfPoly(iRows, iCols, piNbCoef, pdblReal); return iRet; } sciErr = createMatrixOfPoly(pvApiCtx, Rhs + 1, pstVarName, iRows, iCols, piNbCoef, pdblReal); if(sciErr.iErr) { freeAllocatedMatrixOfPoly(iRows, iCols, piNbCoef, pdblReal); printError(&sciErr, 0); return sciErr.iErr; } freeAllocatedMatrixOfPoly(iRows, iCols, piNbCoef, pdblReal); } } LhsVar(1) = Rhs + 1; } else { LhsVar(1) = 0; } return 0; }
Scilab test script
a = %s; b = (2 + 3*%i) * %s; c = [a, 2*a, 3*a;4*a, 5*a, 6*a]; d = [c + c * %i]; if polyExample(a) <> a then pause, end if polyExample(b) <> b then pause, end if polyExample(c) <> c then pause, end if polyExample(d) <> d then pause, end
<< freeAllocatedSinglePoly | polynom | sparse >> |