__Function:__double**gsl_sf_hydrogenicR_1***(double*`Z`, double`r`)__Function:__int**gsl_sf_hydrogenicR_1_e***(double*`Z`, double`r`, gsl_sf_result *`result`)- These routines compute the lowest-order normalized hydrogenic bound state radial wavefunction @c{$R_1 := 2Z \sqrt{Z} \exp(-Z r)$} @math{R_1 := 2Z \sqrt{Z} \exp(-Z r)}.

__Function:__double**gsl_sf_hydrogenicR***(int*`n`, int`l`, double`Z`, double`r`)__Function:__int**gsl_sf_hydrogenicR_e***(int*`n`, int`l`, double`Z`, double`r`, gsl_sf_result *`result`)-
These routines compute the
`n`-th normalized hydrogenic bound state radial wavefunction, The normalization is chosen such that the wavefunction @math{\psi} is given by @math{\psi(n,l,r) = R_n Y_{lm}}.

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