2
natlog x = until cond count (1,1,0)
where
cond (_,val,_) = val < 0.001
count (i,val,sum) = (i+1,(-x)^i/i,sum+val)
Эта функция попытка сосчитать войти 1 + хКак исправить эту функцию логарифма haskell?
Проблема аналогична What is the type signature of this Haskell function?.
Код ошибки:
<interactive>:1:8:
Ambiguous type variable `t0' in the constraints:
(Num t0) arising from the literal `1' at <interactive>:1:8
(Integral t0) arising from a use of `natlog' at <interactive>:1:1-6
(Fractional t0) arising from a use of `natlog'
at <interactive>:1:1-6
Probable fix: add a type signature that fixes these type variable(s)
In the first argument of `natlog', namely `1'
In the expression: natlog 1
In an equation for `it': it = natlog 1