Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Ka whai ake ko te raupapa o ngā rerekētanga whakamua i waenganui i te 1, 2, 3, 4,...; ko 1, 1, 1, 1,.... anake tēnei. Ko te huānga tuatahi o tēnei raupapa kua tohua ko Δa0. E whakawhirinaki ana hoki te whakawhitinga o Euler ki ngā rerekētanga o ngā rerekētanga, me ngā whakawātea teitei ake, engari ko ngā rerekētanga whakamua katoa i waenganui i te 1, 1, 1, 1,... he 0. Ko te whakawhitinga Euler o 1 − 2 + 3 − 4 +... ka tautuhia hei  Pātai: E whakawhirinaki ana te whakawhitinga a Euler ki te aha?
rerekētanga, me iterations teitei, engari nga rerekētanga katoa mua i waenganui i 1, 1, 1, 1,... he 0