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Why prefer two's complement over sign-and-magnitude for signed numbers?
...o add them.
Two's complement addition is very simple. You add numbers normally and any carry bit at the end is discarded. So they're added as follows:
0010
+ 1111
=10001
= 0001 (discard the carry)
0001 is 1, which is the expected result of "2+(-1)".
But in your "intuitive" method, adding is m...
Creating a segue programmatically
... derived class, call that method when the appropriate button is clicked or table row is selected or whatever.
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Understanding __get__ and __set__ and Python descriptors
...th the Temperature class). For example:
temp=Temperature()
temp.celsius #calls celsius.__get__
Accessing the property you assigned the descriptor to (celsius in the above example) calls the appropriate descriptor method.
instance in __get__ is the instance of the class (so above, __get__ would r...
Get all column names of a DataTable into string array using (LINQ/Predicate)
...details of your code. But essentially: A DataGrid is not the same as a DataTable.
– Daniel Hilgarth
May 17 '13 at 8:08
3
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Entity Framework - Start Over - Undo/Rollback All Migrations
...rations by using the second or third command, then delete MigrationHistory table and all migration related code. It should get you to starting position. You can also get starting database from backup (before using migrations) and delete all migration related code.
– Ladislav Mr...
How to change tab size on GitHub?
... https://github.com/*
// ==/UserScript==
document.querySelectorAll('table').forEach(t => { t.dataset.tabSize = 2 });
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What do I use for a max-heap implementation in Python?
... amazed that there IS such a built-in solution in heapq. But then it is totally unreasonable that it is NOT even slightly mentioned at all in the official document! WTF!
– RayLuo
Apr 21 '15 at 6:48
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Heroku NodeJS http to https ssl forced redirect
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"The following table lists other small but important changes in Express 4: ... The app.configure() function has been removed. Use the process.env.NODE_ENV or app.get('env') function to detect the environment and configure the app accordingl...
What is the difference between pluck and collect in Rails?
...asting memory and time. Because it will retrieve all the columns from user table in the database, allocates the memory for each attributes (including the attributes which you will never use)
NOTE: pluck does not return ActiveRecord_Relation of the user
...
How to check whether a string contains a substring in JavaScript?
...0)
return 0; // Immediate match
// Compute longest suffix-prefix table
var lsp = [0]; // Base case
for (var i = 1; i < pattern.length; i++) {
var j = lsp[i - 1]; // Start by assuming we're extending the previous LSP
while (j > 0 && pattern.charAt(i) != pattern...