ENH: Update (and simplify) the `nan<x>` function annotations
ENH: Update (and simplify) the `nan<x>` function annotations

jakirkham/numpy,endolith/numpy,pdebuyl/numpy,numpy/numpy,numpy/numpy,jakirkham/numpy,seberg/numpy,mhvk/numpy,mhvk/numpy,mhvk/numpy,rgommers/numpy,rgommers/numpy,rgommers/numpy,anntzer/numpy,pdebuyl/numpy,charris/numpy,endolith/numpy,charris/numpy,seberg/numpy,endolith/numpy,mhvk/numpy,rgommers/numpy,mattip/numpy,mattip/numpy,jakirkham/numpy,seberg/numpy,charris/numpy,seberg/numpy,endolith/numpy,jakirkham/numpy,anntzer/numpy,numpy/numpy,mattip/numpy,pdebuyl/numpy,mhvk/numpy,charris/numpy,mattip/numpy,anntzer/numpy,pdebuyl/numpy,numpy/numpy,anntzer/numpy,jakirkham/numpy