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Map function in MATLAB?
...0 8 6 4 2 ]; % the mapping array
c = zeros( 1, 10 ); % your target array
Now, typing
c( b ) = a
returns
c = 0 50 0 40 0 30 0 20 0 10
c( b ) is a reference to a vector of size 5 with the elements of c at the indices given by b. Now if you assing values to this r...
What is a loop invariant?
...be no number such that start <= mid and mid <= end and therefore we know that the statement A[mid] == a must be false. However, as a result the overall logical statement is still true in the null sense. ( In logic the statement if ( false ) then ( something ) is always true. )
Now what abou...
Get last record in a queryset
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2017 and the accepted answers is out of date now. As shown below you should use queryset.last().
– wobbily_col
Jul 14 '17 at 14:02
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How do I move an existing Git submodule within a Git repository?
...nts this answer refers to the steps needed with older versions of git. Git now has native support for moving submodules:
Since git 1.8.5, git mv old/submod new/submod works as expected and does all the plumbing for you. You might want to use git 1.9.3 or newer, because it includes fixes for sub...
How to get a json string from url?
...em.Net.WebClient()) {
var json = webClient.DownloadString(URL);
// Now parse with JSON.Net
}
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Empty arrays seem to equal true and false at the same time
...comparison x ==
ToNumber(y).
The result of ToNumber(false) is 0, so we now have:
[] == 0
Again, rule #1 tells us to jump to step #14, but the next step that actually applies is #21:
21. If Type(x) is Object and Type(y) is either String or Number, return the
result of the comparison
To...
best way to get the key of a key/value javascript object
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You can now use spread operator for this purpose, it looks better: const [firstKey, ...rest] = Object.keys(obj);
– Nerlin
Dec 13 '17 at 21:08
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Do git tags get pushed as well?
..., I will only every advise someone to use git push origin <tag_name> now." - copied from stackoverflow.com/a/5195913/4130619
– reducing activity
Aug 10 '15 at 16:46
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Loading existing .html file with android WebView
...id_res/raw/myfile.html"); works only on API level 8. But it doesn't matter now.
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Why prefer two's complement over sign-and-magnitude for signed numbers?
... to 4 bits for size). In the two's complement way, they are 0010 and 1111. Now, let's say I want to 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)
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