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Memoization in Haskell?
...ger -> Integer
memoList f = memoList_f
where memoList_f = (memo !!) . fromInteger
memo = map (f memoList_f) [0..]
faster_f :: Integer -> Integer
faster_f = memoList f
-- Memoizing using a tree
data Tree a = Tree (Tree a) a (Tree a)
instance Functor Tree where
fmap f (Tree l m...
Using emit vs calling a signal as if it's a regular function in Qt
...ystem is a different idiom than a simple function call. I believe it stems from the observer pattern. There is also a major difference between a signal and a slot: a signal does not have to be implemented, whereas a slot must be!
You are walking down the street and see a house on fire (a signal). Y...
How to configure an app to run correctly on a machine with a high DPI setting (e.g. 150%)?
...ked for me but, something happened after I removed the Form.Font = new ... from the Form.Design.cs, the form started to re-scale properly, it works if the Font is defined in the constructor or not at all. Why? somebody else may be able to explained, I just can talk about the changed I made and took ...
Set Additional Data to highcharts series
...
I am using AJAX to get my data from SQL Server, then I prepare a js array that is used as the data in my chart.
JavaScript code once the AJAX is successfull:
...,
success: function (data) {
var fseries = [];
var series = [];
...
SPAN vs DIV (inline-block)
...per encapsulates the example "marginDiv" to clarify the "margin" (distance from inner element "marginDiv" to the text)
of the outer element "marginDivWrapper". Here 20px;)
<div class = "marginDiv"> margin is for the margins </ div>
And there, too, 20px;
&...
Is gcc std::unordered_map implementation slow? If so - why?
...
Is there anything in the delta from 4.6 that would cause that?
– Mark Canlas
Jul 24 '12 at 16:38
30
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Good examples of Not a Functor/Functor/Applicative/Monad?
...type class:
Cannot implement the type signatures of the required methods from the type class.
Can implement the type signatures but cannot satisfy the required laws.
Examples of the first kind are easier than those of the second kind because for the first kind, we just need to check whether one ...
How to implement a ViewPager with different Fragments / Layouts
...e, each Fragment displays a different text, depending on which class it is from and which instance it is.
Also be aware that I am using the support-library's Fragment:
android.support.v4.app.Fragment
MainActivity.java (Initializes the Viewpager and has the adapter for it as an inner class). ...
How to correctly close a feature branch in Mercurial?
...e 2:
branch was merged into default
This case is not that much different from case 1 and it can be solved by reproducing the steps for case 1 and two additional ones.
in this case I update to the branch changeset, do another commit with --close-branch and merge the new changeset that became the t...
Can I have an IF block in DOS batch file?
...nal statement, and the opening parenthesis.
I am setting @echo off to keep from seeing all of the statements printed to the console as they execute, and instead just see the output of those that specifically begin with echo.
I'm using the built-in ERRORLEVEL variable just as a test. Read more here
...