For full information please refer to the NAG Library document for d02nr
The index of the column of the Jacobian which is required.
Indicates which locations in the array to fill with the th column.
If , the th element of the Jacobian must be placed in , otherwise the th element must be placed in .
If , in the previous call to
ivp_stiff_sparjac_setup(), always, hence the th column of the Jacobian must be placed in , for .
No equivalent traditional C interface for this routine exists in the NAG Library.
ivp_stiff_sparjac_enqis required when
ivp_stiff_imp_revcom()is being used with sparse matrix linear algebra. After an exit from
ivp_stiff_sparjac_enqmust be called to determine which column of the Jacobian is required and where it is to be placed in the array (an argument of