| fngr | Access a list of values separately but calculate them together. This function generalizes grad_share for any number of functions. | 
| grad_share | Split function and gradient calculation | 
| lbfgs_share | Use splitfngr with lbfgs | 
| make_share | Convert a function from multiple function arguments to a single function | 
| nlminb_share | Use splitfngr with nlminb | 
| optim_share | Use splitfngr with optim |