Here is a list of all documented variables with links to the struct/union documentation for each field:

### - r -

- r_act_nfft_plan : nsfft_plan, nsfftf_plan, nsfftl_plan
- r_hat_iter : imri_inh_2d1d_adjoint_plan, imri_inh_3d_adjoint_plan, infct_adjoint_plan, infft_adjoint_plan, infsft_adjoint_plan, infst_adjoint_plan, innfft_adjoint_plan
- r_iter : solver_plan_complex, solver_plan_double, solverf_plan_complex, solverf_plan_double, solverl_plan_complex, solverl_plan_double