Searched refs:XtX (Results 1 – 2 of 2) sorted by relevance
26 Mat XtX; /* Normal matrix formed from X */ member
136 PetscCall(MatCreateNormal(linear->X, &linear->XtX)); in PetscRegressorSetUp_Linear()138 PetscCall(KSPSetOperators(ksp, linear->X, linear->XtX)); in PetscRegressorSetUp_Linear()190 PetscCall(MatDestroy(&linear->XtX)); in PetscRegressorReset_Linear()