function-composition

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Tupled function composition

I\'m curious why this let f开发者_开发技巧 = (fun a b -> a, b) >> obj.Equals gives the error[详细]

2023-04-04 04:29 分类：问答
function composition with reverse syntax

If I want to apply f first and g second, I have to write: g . f Is there another standard syntax that would allow me to write the functions in the reverse order?[详细]

2023-03-30 21:06 分类：问答
Confusion about function composition in Haskell

Consider following function definition in ghci. let myF = sin . cos . sum where, .开发者_JS百科 stands for composition of two function (right associative). This I can call[详细]

2023-03-25 13:17 分类：问答
composition with dyadic operator?

I want to do something fairly simple; I am using the operator (++) with Data.Map insertWith, and it works fine, but I want to eliminate duplicates in the value created, so want to compose it with nub.[详细]

2023-03-17 23:16 分类：问答
Combine 2 list functions into 1?

How would I combine the following 2 functions: replaceNth n newVal (x:xs) n ==开发者_运维知识库 0 = newVal:xs[详细]

2023-03-02 08:13 分类：问答
Haskell function composition operator of type (c→d) → (a→b→c) → (a→b→d)

Ordinary function composition is 开发者_C百科of the type (.) :: (b -> c) -> (a -> b) -> a -> c[详细]

2023-03-01 03:22 分类：问答
Confusing function application and function composition in Haskell

The operation (filter (`notElem` \"\'\\\"\").[(1,\'a\',\'%\',\"yes\"开发者_StackOverflow)]) gives an error. How can apply this filter on that list properly?You\'ve got a couple of serious problems.[详细]

2023-02-26 19:58 分类：问答
Error when trying to use function composition in Haskell

I have just began recently to learn Haskell, more specifically on the topics of function composition, partial functions, maps, filters and sectioning. On one of the exercises am asked to modify the tw[详细]

2023-02-11 08:43 分类：问答
Generic function composition in Haskell

I was reading here, and I noticed that, for example, if I have the following function definitions: a :: Integer->Integer->Integer[详细]

2023-02-01 19:42 分类：问答
Haskell: composing function with two floating arguments fails

I am trying to compose a function of type (Floating a) => a -> a -> a with a function of type (Floating a) => a -> a to obtain a function of type (Floating a) => a -> a -> a. I[详细]

2023-01-28 11:21 分类：问答