rel1x
Reputation: 2441
What does "y <- [0..]" mean?
I don't understand what y <- [0..] means here. Is it a variable definition?
f x = sum $ take 10 [x**y/product [1..y] | y <- [0..]]
Upvotes: 0
Views: 172
Answers (2)
Mike H-R
Reputation: 7835
this means a function taking x that returns the sum of ((x to the power of y) over y factorial for y ranging from 0 to 9).
Upvotes: 0
Guvante
Reputation: 19223
A list comprehension. It can be interpreted as "for each y in [0..]".
Upvotes: 5
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