erfi在python 3.4中没有返回正确的值

Question

我试过这个：

import scipy.special as spec

y=spec.erfi(0.9)
print(y)

输出

1.37154320157

但实际答案是1.16308715367，可以验证here

有人可以帮我解决这个问题吗？

由于

Answer 1

select OrderNo, Tender, TenderSequence, row_number() over (partition by OrderNo order by OrderNo asc ) rownumber, TenderSequence + row_number() over (partition by OrderNo order by OrderNo asc ) TS_RowNum_ADD from TENDERINFO 是虚构错误函数，erfi (docs)。你想要erfinv：

-i erf(i z)