Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Passage: Ko tēnei hua e whakakotahi ana i te tāpiritanga o Abel, ka whakahokia mai mā te tuku i te φ(x) = exp(−x). Ka taea te whakamatau i te kīanga whānui mā te whakakotahi i ngā tau i roto i te raupapa i runga i te m, me te huri i te kīanga ki tētahi huinga Riemann. Mo te taahiraa whakamutunga, ko te taunakitanga e pa ana ki te 1 − 1 + 1 − 1 +... e pa ana ki te kaupapa uara toharite, engari i konei ka hiahiatia e tetahi te ahua Lagrange kaha ake o te kaupapa a Taylor.  Patai: Me pehea te whakahoki mai i te kohinga a Apera?
mā te tuku i te φ(x) = exp(−x)