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Why is pow(a, d, n) so much faster than a**d % n?
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See the Wikipedia article on modular exponentiation. Basically, when you do a**d % n, you actually have to calculate a**d, which could be quite large. But there are ways of computing a**d % n without having to compute a**d itself, and that is what pow does. The ** operator can't do this because ...
Why doesn't Java offer operator overloading?
... temporary object into the existing object a.
However, in Java, operator= doesn't perform value copy for reference types, and users can only create new reference types, not value types. So for a user-defined type named Complex, assignment means to copy a reference to an existing value.
Consider in...
Propagate all arguments in a bash shell script
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This does this work for pure pass through of quoted/escaped strings: Observe: cat rsync_foo.sh #!/bin/bash echo "$@" rsync "$@" ./rsync_foo.sh -n "bar me" bar2 bar me bar2skipping directory bar me ...
How to do ssh with a timeout in a script?
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This doesn't actually work for "the remote host is taking an infinite time to run": "ssh -o ConnectTimeout=5 host 'sleep 10'" waits for 10 seconds, not 5.
– Ferry Boender
Oct 11 '16 at 18:37
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How to use the IEqualityComparer
... want to get all of them without duplication. I created a compare class to do this work, but the execution of the function causes a big delay from the function without distinct, from 0.6 sec to 3.2 sec!
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How do you test private methods with NUnit?
...y guess was that I need to include my test code into my main code?! - That doesn't seem to be the correct way to do it. (I dislike the idea of shipping code with tests in it.)
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How do I bind to list of checkbox values with AngularJS?
...me filterNameFilter ("filterName" should be in italics) -- $filterProvider docs
– Mark Rajcok
Jan 25 '13 at 19:04
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What does “for” attribute do in HTML tag?
...ttribute is bound to the input by the id attribute, and the name attribute does not have to match. <label for="theinput">Input here:</label> <input type='text' name='notmatching' id='theinput'> Will still work
– Glo
Jan 15 '15 at 14:35
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How to select a CRAN mirror in R
I'm trying to install a package through the R prompt by doing the following:
11 Answers
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How to do a batch insert in MySQL
... of records that need to be entered into a table. What is the best way to do this in a query? Should I just make a loop and insert one record per iteration? Or is there a better way?
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