PK_TOPOL_fctab_deriv_d2p_t

struct PK_TOPOL_fcstr_deriv_d2p_s
       {
       PK_VECTOR_t  du2;
       PK_VECTOR_t dudv;
       PK_VECTOR_t  dv2;
       };
typedef struct PK_TOPOL_fcstr_deriv_d2p_s
               PK_TOPOL_fcstr_deriv_d2p_t;
struct PK_TOPOL_fctab_deriv_d2p_s
       {
       PK_TOPOL_fcstr_deriv_d2p_t *data;
       int                         length;
       };
typedef struct PK_TOPOL_fctab_deriv_d2p_s
               PK_TOPOL_fctab_deriv_d2p_t;

Used in:

PK_TOPOL_facet_table_t

This is a support structure for PK_TOPOL_facet_2_r_t. It is an indexed table
of d2p/du2, d2p/dudv & d2p/dv2 second derivative surface values